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Sweetheart by Smxll_mxght1
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
18 Aug 2026
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Summary
Bakugo Katsuki has spent three years watching Kirishima Eijiro. Cataloguing the details. Learning the shape of his hope.
When they're assigned as a fake engaged couple to infiltrate a couples retreat for heroes, Bakugo tells himself it's surveillance. Justified concern. Tactical awareness.
Three weeks of touching, kissing, performing intimacy for an audience. Three weeks of "Kiri" and "sweetheart" and hands that find each other automatically. Three weeks of Bakugo's jealousy spiking every time Kirishima smiles at someone else, and Kirishima's hope dying quietly every time Bakugo pulls away.
The retreat organizer has a quirk that forces emotional truth. The mission requires suppressants that leave them vulnerable. And somewhere between the first awkward kiss and the desperate confession against a door, the performance becomes real.
But Bakugo has never learned how to want something without destroying it. And Kirishima has never learned how to stop hoping for the impossible.