Sundaisysun
Recent bookmarks
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to the only boy i've loved before by rainboweuphoria
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
13 Mar 2025
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Summary
Kacchan slides a very familiar letter across the table to him and asks, “What the fuck is this?”
Izuku really feels like he’s about to explode.
Because that letter is possibly the culmination of the biggest feelings he’s ever had: love, and all of it for Kacchan.
Izuku wrote it at thirteen. When he knew that his best friend since diapers would never return the feelings, but Izuku felt like they were so heavy they needed to be shared.
He wrote the letter, poured his aching, crushing tween heart out onto two and a half pages of college ruled notebook paper, and addressed it in his best calligraphy. To: Kacchan. Izuku remembers his thirteen year old self debating before adding on a little explosion sticker.
Now, at seventeen, he’s debating the pros and cons of jumping out of the nearest window.
OR: Izuku writes Katsuki a love letter. 4 years later, Katsuki receives it. Izuku is still very much in love with him, and Katsuki is very much not.
- Language:
- English
- Words:
- 13,566
- Chapters:
- 2/2
- Comments:
- 114
- Kudos:
- 2,535
- Bookmarks:
- 572
- Hits:
- 19,341
Bookmarked by Sundaisysun
15 May 2026
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For Where your Treasure Lies, There your Heart Lies Also by Monomaniacal
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
17 Apr 2026
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Summary
“Katsuki,” Masaru asks, a little more desperately now, “Your new friend…is he…a dragon?”
Katsuki looks up from the loot bag he’s busy stuffing with bits of jade and malachite and massive, rare green sapphires and scoffs.
“Of course not,” he says, looking smug and pleased, “He’d make a terrible dragon. Deku’s my unicorn, he's way better like that, we’re gonna go on adventures together now.”
He takes his sack of loot to his room and calls.
“I wanna look through the rest of your junk later, it’s not as lame as I thought, okay?”
Mitsuki hears the door slam and turns to her mate in shock.
“A unicorn.” She mumbles.
“At least it’s not a human,” he says faintly.
Or- Izuku and Katsuki meet as children. They couldn’t be more different, or more similar either!
- Language:
- English
- Words:
- 20,426
- Chapters:
- 3/3
- Collections:
- 2
- Comments:
- 107
- Kudos:
- 475
- Bookmarks:
- 123
- Hits:
- 2,851
Bookmarked by Sundaisysun
18 Apr 2026
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i love you! loud and clear! by thealleycatkoi
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
05 Apr 2026
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Summary
Katsuki looks over at him completely deadpan, not even bothering to stop his stroll, “Really. You think you can cook?”
Of course. Katsuki only heard that part of Izuku’s ramble.
“Okay, so I can sorta cook,” Izuku mumbles as he frowns and wrinkles his nose at Katsuki, but it comes out as more of a pout than he means to.
“Pinocchio, your nose get any fucking bigger and you’re gonna poke people in the eye with that shit,” Katsuki rolls his eyes, but his signature smirk grows bigger on his face.
Izuku lets out a snort, “You’re the actual worst, Kacch—Oh! We’re here!”
OR
Love is not always a grand confession that you dramatically fall face-first into under the pouring rain (although, in BKDK’s case it is). Sometimes, it’s finding the ripest pear on sale for your hero partner while your adopted cat is being a shit-head.
Four times Katsuki silently shows he cares and one time Izuku finally gets the message loud and fucking clear. It’s tooth-rotting fluff... eventually... And gay I swear! Enjoy it!
Bookmarked by Sundaisysun
29 Mar 2026
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Shimmer, Glimmer, Little Star by fawndant
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
01 Jun 2025
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Summary
"Izuku stopped dead in the water, staring at the thing as it... sparkled.
He may have hatched in the unluckiest fashion possible, but he was still a mer. His body cried at him to collect, to hoard, to-
To grab that thing. Whatever it was."
A clumsy courting BKDK MerMay fic
- Language:
- English
- Words:
- 11,795
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 19
- Kudos:
- 484
- Bookmarks:
- 100
- Hits:
- 3,529
Bookmarked by Sundaisysun
27 Jan 2026
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Elevate that Beta by diadiadiamonds
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
17 Jan 2026
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Summary
Izuku, a middle aged, overworked Inferior Beta gets trapped in a elevator with Bakugo Katsuki, a Superior Alpha who's gone into his rut. With nowhere to go and no one else there, Bakugo looks to Izuku.
"Guess I'll have to make due with you."
What starts as a way for Bakugo to relieve his rut quickly develops into Izuku dealing with a very demanding, needy Alpha who's not about to take no for an answer.
Series
Bookmarked by Sundaisysun
18 Jan 2026