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The seed of a promise

Summary:

In a world where the Holy War didn’t end with Elizabeth and Meliodas, where Mael never became Estarossa, a final battle has just been fought.

The Holy War is finally over.

As the victors gather and the vanquished are chased and finished, the young Fairy King tries to find a way to prevent yet another tragedy - and ends up finding an ally in an unexpected place.

Notes:

And here I am, with a shiny new AU I wrote solely because I could. This idea has been stuck in my brain for a while - what would have happened if Gowther hadn’t turned Mael into Estarossa? If Demons and Goddesses had kept fighting? And since it’s me and I love drama, I had to add King and Diane and make them enemies. I’ll write down some other details about this AU in the notes at the end in case you need them.

Please, enjoy! And let me know what you think about this if you feel like :)

(See the end of the work for more notes.)

Work Text:

There is blood on his hands and his clothes, on his wings and his hair. It makes his jacket heavy and his skin unpleasantly slick. Harlequin can’t bring himself to care right now. 

The battle is over, yet he keeps flying over the field, eyes darting from a corpse to the other, studying the survivors as they make their way through the craters and bodies that cover the ground. Most of them walk silently, looking around as if they just woke up from a dream; others are frantic and turn their heads left and right, calling out names and getting no answer. 

Harlequin doesn’t call but still searches. The knot in his stomach starts loosening only when he finally catches a glimpse of Elaine on the ground, standing among some human soldiers, alive and apparently unarmed. He is too distant to see her expression when she looks up at him, but he can read her heart as she can read his and what he reads is relief and exhaustion and grief. Later, when they’ll be home, they’ll find each other to whisper words of loss and comfort, or maybe they’ll just rest together, shoulder to shoulder and hand in hand, as they did when they were younger. Right now, they both have other matters to take care of. 

Minutes later, Helbram waves at him, a tired grin on his face. He is floating over the remains of a burned tree surrounded by a group of Fairies, to whom he soon returns to give orders. Harlequin doesn’t approach them and heads forward, feeling relieved that his best friend is fine. He knows he can leave this part to him; after all, Helbram has been his first in command for years. He knows perfectly how to handle the aftermath of a battle.

Gerheade is the next. His advisor looks tired, there is a cut on her cheek and bruises on her left arm, but the purple blood staining her dress isn’t hers. “We are still not sure about the number,” she says after a quick bow. They have done this countless times before, and she knows exactly what he wants to know. “For now, the reports indicate that more than five hundred have fallen. The wounded we have found are being taken care of by the Goddesses. I’ll personally check how many won’t be able to fly back on their own.”

Harlequin nods, clasping his hands behind his back. More than five hundred have died today. He expected a high number, considering that they have battled for hours; he still feels sick. More than five hundred Fairies won’t return to the Fairy King’s Forest alive, five hundred people who trusted him, followed him, and he failed to protect. Deep down, he knows it could have gone worse. If they had lost this battle, he doubts many would have left the field alive, and their home would have been next. Had they lost here, his entire Clan would have eventually been wiped away by the enemy. 

Still. Five hundred. He swallows hard and sighs, “Give the order to gather the bodies. We are taking them home.” 

Gerheade frowns, a question on her lips, but she holds it back when she meets his eyes. “As you wish, my king.” They have never collected such a large amount of bodies from the battlefield, and it will take hours to find them all and bring them back to the Fairy King’s Forest. It doesn’t matter. He couldn’t protect them, but this doesn’t mean he will abandon them. They deserve this, at least.  

His next task is a little more bothersome but necessary. Tomorrow morning there will be an official meeting for the leaders of Stigma, but he doesn’t want to leave before checking on the Goddesses. 

As he flies, Harlequin’s gaze turns to the east. That’s where the Demons came from, where the Demon King opened a portal from the Demon Realm to bring most of his army to Britannia. He is fairly sure that the portal collapsed when the Demon King died, destroyed by the hand of the Supreme Deity; still, many Demons flew in that direction when they realized the battle was lost as if in a last attempt to save their life. That’s where the Goddesses warriors have followed them, too. 

In the distance, Harlequin can see figures battling in the air, he can see smoke rising from the ground and flashes of light against the darkening blue of the sky. Inside, he feels nothing but exhaustion. Driven by the euphoria following their victory, some Fairies have tried to chase after the Demons too, yelling menaces and obscenities. He stopped them, of course. He has no rule over the other Clans, but he does over his people and he decided that today, no other Fairy will die and no other Fairy will kill. 

Briefly, he wonders if there are still Giants standing with the Demons. So many kept fighting until the very end, even after their leader Matrona was killed, but it’s hard to believe that not even one gave up to fear and tried to save themselves at last. As he stares at the fight that still consumes in the distance, Harlequin feels as his bowels have turned into stone. Even if they had tried to escape, they are probably being killed right now. And all of that, because the Giant Clan chose to side with the Demons. 

The thought leaves a bitter taste in his mouth, so he decides to push it away and focus on his task. There is nothing he can do for the Giants right now. And at least, even though he knows he is being selfish, he is relieved he doesn’t sense her power over there. Perhaps it’s because she is already dead, but right now, Harlequin allows himself to hope.

 

He finds Ludociel hovering high in the sky, giving orders to a small group of Goddesses. “Ah, Fairy King,” he welcomes him with his usual smile, gesturing at his soldiers to go. Some bow and fly away, others stay close, hands tight around their weapons, watching carefully their surroundings. Ludociel’s guards. Stigma’s victory has been overwhelming today, but they are obviously not going to let their guard down anytime soon. 

Ludociel pays no attention to them as he turns towards Harlequin. There are stains of dirt and dry blood on his feathers, yet his cape is immaculate, so white it hurts his eyes; he probably changed it as soon as the battle was over. “I see your army is preparing to retreat.” 

“My people need rest,” Harlequin says, eyes wandering over the few Goddesses around them, over their tattered clothes and bruised skin. “As does yours.” 

“We will get to it,” Ludociel dismisses the problem with a wave of his hand. “As soon as our enemies are gone for good.”

There is something in his tone that makes Harlequin’s hands twitch. “Most of the Demon warriors have died today,” he says slowly, “The Demon King is gone. All his Commandments are gone.” He took some of them down himself. Even the Demon King’s son fell, overpowered by the magic of the Archangels. “Isn’t it enough?”

Ludociel hums. “The most of the work is done, undoubtedly. However, we can’t know for sure how many Demons are left in the Demon Realm unless we don’t verify.” His voice is sweet as honey, it clashes unpleasantly with the cold implication of his sentence. 

“We both know that the ones left in the Demon Realm are mostly civilians, Ludociel. Will you slaughter them too? Even the ones who cannot fight? Even their children?”

There is a moment of pause, as Ludociel studies him, tilting his head, his expression unchanged. “We will do what’s necessary,” he finally says. “We don’t want anything like this to happen again, don’t we?” 

It takes an effort not to react to the veiled threat in his words, but Harlequin knows this game well; he won’t offer Ludociel anything, especially not a sign of weakness. “What about the Giants?” He asks instead. 

Ludociel paints regret in his expression like a skilful painter. “They will be taken care of too. They are traitors, and as such they will be considered.” He slightly shakes his head, “Such a shame, don’t you think?”

This time, Harlequin doesn't hold back. “I don’t think it’s wise to pursue them more. They have lost many lives today, and they lost their chief. They will not be a threat anytime soon.”

“Ah, still nostalgic of the times they were our allies, young king?”

“I just believe,” he answers coldly, “that the relationships among our Clans will run more smoothly if they’ll see us show mercy. The Giants they left behind today are but their youngsters and mothers with children - they knew this battle was decisive. Are you truly planning to exterminate them all?”

“What I’m planning to do is to find them and ensure that we won’t get another unpleasant surprise. Stigma will decide about their fate.” The Archangel shakes his head again, and this time a faint smile appears on his lips. “You are too young to remember clearly about their treason, I’m afraid. We won’t show their warriors more mercy than what they showed us, and about the others … there is time, now. The humans will want to have their say too.” 

There is no point in discussing this now. Harlequin feels the gaze of the other Goddesses on him, the resolution radiating from Ludociel’s heart, and suddenly, he feels incredibly exhausted. “Very well,” is what he forces out of his mouth, “We will speak about this tomorrow.”

 

“Indeed,” Ludociel hums before looking away, as to imply that Harlequin is dismissed. Perhaps it’s the exhaustion, both physical and emotional, but this time his arrogance doesn’t touch the Fairy King. He leaves without another word and flies down, towards the scarred ground. 

Giant, Fairy, Demon and Goddesses’ magic destroyed this plain. Rocky spurs rise wrapped in vines among still fuming craters, and wherever his eyes can reach hundreds, thousands of bodies are scattered. Harlequin would want to look away, for once. He is so tired of death. 

And that’s exactly why he forces himself to keep looking. He is tired of death, and he won’t let anyone else die in this war if he can help it. He already looked before, but now he has to make sure that her body isn’t among the fallen. Could have she fled? It hurts to realize that he can’t be sure she didn’t. The person he needs right now, the person who could help him prevent another bloodshed, inhabits his memories as the ghost of a gentle child who offered him friendship when life was easier and Fairies and Giants were allies. Even though he has seen her later, again and again, on too many battlefields, the first image that comes to his mind when he thinks of her is from their past. 

 

Eyes shining in the light of dusk, a finger raised to make a vow.

“We will be friends forever! Like Drole and Gloxinia!” 

Warmth tinges his cheeks with red as he raises his finger too. 

“We will. I promise!”

He is rewarded with a bright smile that outshines the sun itself.

 

The smile on Harlequin’s face is now bitter. It didn’t last long, their promise - the promise of two kids from two different clans that thought that war could never harm them. After all, Gloxinia used to tell him that the Fairies and the Giants had been close for centuries, that their bond would have never faded. He also used to smile and tell him not to worry about him when he left for a battle because he was the king of the Fairies and he would have always come back to his people. 

Gloxinia had been wrong about many things. 

They had died together, he and Drole, the king of Giants, during a battle so dreadful that Fairies and Goddesses still refused to talk about it. They had died and they had left their Clans in chaos, one lost without a guide and the other thrown in the hands of a young Fairy with too little knowledge of the world outside his forest. As new Fairy King, Harlequin had chosen to remain loyal to the Stigma and the Fairies had followed him, while the Giants had forged a new alliance, one with the monster who was able to defeat their king in combat. The Demon King himself. It was usual for the Giants to follow the strongest, but this didn’t make their betrayal less hurtful. 

Harlequin had come to terms with it years before, but he had been unable to forget about his promise to the young Giant girl who had been his best friend when their Clans were allies and he was nothing more than a simple Fairy Gloxinia had taken under his wing. When he saw her again, after years of training and clashes, she was a warrior under the direct command of Matrona, and she danced ballets of death and destruction. 

He could never bring himself to face her. He focused on other enemies, turning his back on her, hoping that she would do the same. Even though they had been enemies way longer than they had been friends, he couldn’t help but fear the day he would have found her dead body on the battlefield. She was a tie to a past he missed terribly, a tie he simply didn’t want to cut because once gone, it would have been lost forever. 

Until now, she survived, and there is a part of him that refuses to give up just yet. It takes effort to use his magic after he used so much for the battle, but he grits his teeth and flies faster, trying to detect any sign of her power. Even a crumble would be enough, to at least tell him that she lives.

Long minutes later, as he flies over a small crater that seems to brim with corpses, he halts in mid-air; it wouldn’t have noticed if he hadn’t known what to look for, but there is a presence - distant, feeble, like a spark among ashes. Harlequin turns his head towards the wood that skirts the battlefield at North. It hasn’t been spared by the battle, not completely, but many trees are still standing. It wouldn’t be a bad place to hide.

After ensuring that no one is watching him, Harlequin flies lower, swerving among the debris, and fastly approaches the wood, following the trace of magic. It becomes stronger as he enters the tree lines, and with it, his heart pounds faster and his bowels knot. That’s when the traces of blood appear, with the obvious signs of someone passing among these branches, breaking the frail wood. From there, it’s not hard to find her. 

When he finally sees her, she is lying with her back against a tree, the broken handle of a war hammer in her hand. Her eyes are on him as soon as he emerges from the branches, studying him from under dirty brown hair. Her expression hardens, but she stays still, waiting for him to reach her.

It’s not that bad, he thinks as he examines her injuries while slowly flying towards her. Her left leg seems to be broken and her face is scratched and swollen, and fresh blood soaks her clothes coming from dozens of cuts on her arms and shoulders, but she is a Giant and he saw Giants survive way worse than this. The thought doesn’t stop his heart from sinking in his gut. He can’t leave her like this. 

He halts mere feet from her, distant enough not to make her feel threatened - or so he hopes - but close enough to speak with her. But as her violet eyes bury into his soul, he finds himself at a loss of words. Here is the child who used to play tag with him, who smiled when he gave her flowers and danced with him in the bright days of summer. Here is the child who told him she loathed violence so much she would have rather abandoned her own Clan than fight this war. The child who would have wanted to use her dance to build, rather than to destroy. He would have liked to live in a world where her wish had come true. 

“Have you come to finish me?” 

Her voice, weak but firm, feels cold as ice on his skin. His expression doesn’t change, though - he has been practising his self-control for too long to let it slip, how deep her words wound him. 

Not once in the past years, when they saw each other on the battlefield, she has shown a sign of recognizing her childhood friend, and still now that they are finally facing each other, her expression is a mask of stone and mistrust. Has she really forgotten about him? Does she truly believe he would go after her just to kill her? 

“I haven’t,” he hurries to answer as he lifts his hand; when the green light of Pollen Garden surrounds her, the Giant hisses and pulls back, pressing her back against the trunk, then freezes and watches with wide eyes as the luminescent pollen rains over her, closing her wounds and welding her bones. When she returns her gaze on him, it’s filled with wonder and confusion.

“The Goddesses are chasing the warriors who fled the battlefield,” Harlequin says, “but they won’t attack the Giants who didn’t participate, not today.” With another movement of his hand, his Spirit Spear disappears. “You should be able to come back to your home before them. Matrona is dead, but you were her second in command. They will follow you, and you have to take them away. Leave Megadozer and hide somewhere until the Goddesses and the Humans’ bloodthirst has quenched. This war lasted far too long and too many have been hurt. Even though I don’t think they all are willing to harm civilians, the situation could easily escalate, and I doubt that I … that anyone would be able to stop it.”

Her eyes darken but she nods. She knows as well they won’t make it easy for the Giants. Slowly, she stands, until her face is at the same level as his, her stare fixed on him. There’s a part of Harlequin that is tempted to use his heart reading powers to know what she is thinking now, but as usual, he suppresses it. Heart reading is as natural as breathing for him and helped him so many times, but it can be a double-edged sword. Besides, they aren’t fighting - it would be  rude

“Why are you doing this?” 

He should expect her next question, but it still floors him, leaving him silent and still as he thinks about the right words to use. 

“The Giants betrayed you,” she insists. “We killed so many among the Fairies. And yet you are here, helping me, giving me the chance to help my people. I want to know why.”

He hesitates another moment before speaking, staring back into her eyes. “I have never wanted to see the Giants annihilated, and I’m tired of slaughters. Our Clans hurt each other enough and you don’t pose a threat for us anymore. I hope that under your guidance, the Giants will follow a new path, one that will allow them to coexist with the other Clans again, once the wounds this war left will start to heal.”

“My guidance? Have you seen me?” He is taken aback by the bitterness in her voice. “There is so much blood on my hands. I’m no more than a murder, Fairy King. What makes you think that I will make the Giant follow the path of peace?”

“Because you never wanted this.” The words slip from his mouth before he can stop them, and they are met by shock flourishing on her face. With a sigh, Harlequin continues, folding his hands in front of him not to move them nervously. “You don’t take pleasure from fighting and killing, nor you have reasons to continue this war. We all have done what we had to, Diane, and we all will answer to the consequences by ourselves. But I believe that now that you have the chance to do what’s right, you will take it.”

She gasps at the mention of her name and watches him in awe. He expects her to question him now, to yell at him to get out of her head, as they all do when they think he is reading their hearts. But again, she surprises him. “You … you remember me,” she whispers, covering her mouth with a hand. “Don’t you, Harlequin?”

Breath stops in his throat. “I - of course I do, how could have I forgotten? You were my best friend.” He swallows, his hands clenching around each other. “I thought you didn’t remember me.”

“I thought you didn’t remember me!” She shakes her head, “I spent years stuck in Megadozer, training for the war, hoping that when they’d let me out, I could at least see you again. But the first time I met you on the battlefield, you didn’t even look at me. You never even tried to talk to me.”

“I kept my distance because I didn’t want us to be forced to fight. I couldn’t have brought myself to hurt you,” he admits.  

“I couldn’t have either, I wouldn’t have. I thought you didn’t recognize me - or you simply didn’t remember me.”

“I’m sorry,” he mutters, “You didn’t say anything either. I thought it had simply been too long since we were friends. Besides, I ... changed quite a bit, since then.”

Diane raises a brown, examining him. “You’ll have to do way more than growing a pair of wings for me not to recognize you.”

Harlequin can’t stop an astounded laugh, “Is that so?”

“Absolutely,” she snorts. “Though … I didn’t expect the hair.” For the first time since forever, he sees her lips curve into a smile. It’s surprising, how much he missed it. “No,” she continues, shaking her head, “I was afraid of what would have happened if I had confronted you. It’s not just your appearance, your entire attitude changed since we were kids. I thought that even if I had reminded you about our friendship, I couldn’t be sure about your reaction. You could have not cared about it anyway.”

“Diane, I’m so sorry. If I had known, I …” Truth to be told, he isn’t sure what he would have done. Reconnected with her? While they were on the opposite sides of a war? There was no way it would have worked smoothly. 

“I’m sorry too,” she says softly, “I’ve missed you.” 

A shiver travels through his body. “And I, you.” There is so much he would want to ask, so much he would want to tell her. She is Diane, his best friend, yet she has changed so much and he thinks he would want to know better the person she became. But there is no time. The sun is going to set soon. “If you want to go home, you should go now,” he says quietly, “Before someone finds us.”

She heaves a sigh and nods, looking down. “I know,” she says as sadness obscures the light in her eyes. “They’ll be waiting for news.” 

As are the Fairies he left in the safety of the Fairy King’s Forest. Harlequin will have to do the same himself, later; he will have to look at his people and tell them about the losses they suffered today. There have been so many battles in this bloody war, but this part never got easier. “I’m sorry,” he says again, even though he isn’t sure what he is apologizing for. “If things were different, I’d want you to come with me. I would be able to keep you safe in the Fairy Realm, not even the Supreme Deity can come there without my permission. But …”

“I can’t leave the others behind,” Diane finishes, shaking her head. “I’ll find a way to keep everyone safe. Thank you, Harlequin. I don’t know how I can ever repay you for this.”

“I do.” 

Her stunned expression would be funny if it wasn’t for the way her body tenses and her hand clenches around the remains of her hammer. A few minutes of reconciliation can’t cancel years of war, he bitterly thinks as he hurries to explain, “I want things to change between our Clans. I know it will be difficult and things will probably never be like they were before, but I want us to stop fighting and to be on good terms, at least. And I hope you can help me with this.”

It takes her some moments to answer. “I’d like that, too,” she admits. “I don’t know if I’ll be able to change their minds. Giants are raised to be warriors, and fighting for our honour is supposed to be our reason to live. Some will want revenge. But … I’ll try to - I'll find a way. I won’t let them throw their lives away like this and I won’t let them stain their hands with blood”. Something new shines in her eyes when she looks at him, “I promise.”

“Thank you,” he answers, letting a relieved smile curve his lips. “And I promise you that I’ll do the same. No harm will come to you from my people, as long as I breathe.”

This is so different from the promise they made each other so long ago - for once, they do not seal it with their pinkies - yet he can’t help but feel a little bit nostalgic; there is something in Diane’s expression that makes him believe she feels it too. There is no time to evoke images of a past long gone, though, and so she nods and moves away, her walk as swift as before the battle. 

Before she disappears between the trees, she turns around one last time to look at him. It’s hard to read the mix of emotion in her eyes, but despite the curiosity, Harlequin avoids reading her heart. He smiles, instead. And she smiles back, just for a moment. 

Then, she is gone. 

 

When Harlequin comes back to the battlefield, his Fairies have been gathered and are working on finding a way to bring the bodies of their fallen back home. Humans are going back to their settlement, and in the distance, he sees a few Goddesses preparing to return to the Celestial Realm. The air is still filled with anguish and mourning, but something else smoulders in the hearts of the survivors, a sense of excitement that Harlequin knows will rise to the surface tonight, when celebrations will be held all around Britannia. If just for a few hours, people will try to forget about what the future holds for them, to finally allow themselves to live free of the shadow of the war. 

As he lands among the Fairies, as he solemnly nods to their tired bows, Harlequin wonders when he will be able to do the same. For others, the war is over, but he knows his allies too well to think the peace after this war will be easy. If Diane manages to hide her people away, Ludociel won’t be happy, nor will the human kings. They will want answers and will search the entire country for them. 

But there is something that makes the morrow look a little bit easier; it’s the promise of a different future, the seed of an agreement he just planted alongside with a Giant girl. 

So Harlequin holds his head up and breathes in deeply, feeling like part of the weight on his shoulders has been finally lifted; then, he gets ready to lead his people home.

Notes:

Here’s some more info about the AU, since I couldn’t explain every single change in the story.

- Humans are part of Stigma now. During the centuries, the people of Britannia formed many small kingdoms that eventually joined the Goddesses because first, the war was bringing way too much destruction over Britannia, and second, they tend to prefer them over the Demons. (The fact that Goddesses don’t eat human souls may have influenced their opinion)

- Elizabeth and Meliodas aren’t mentioned but they actually tried to stop the Holy War in a similar way as they did in the manga. They failed, of course, and no one has seen them since.

- The battle where Drole and Gloxinia found their end is also the one where Meliodas and Elizabeth fought their parents. It didn’t end well for anyone.

- As you might have noticed, there is no Dahlia here. Harlequin was chosen to be the Fairy King right after Gloxinia died.

- Matrona didn’t exactly become the Giants’ leader right after Drole died, but after they joined the Demons, she ended up leading them because she was one of the strongest warriors. She also raised and trained Diane.