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1. Sunshine Boy by Azzy_Blight

   Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)  

   • Not Rated
   • Creator Chose Not To Use Archive Warnings
   • No category
   • Work in Progress

   04 Aug 2025

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Bakugou Katsuki/Kirishima Eijirou
   • Aizawa Shouta | Eraserhead/Yamada Hizashi | Present Mic
   • Kaminari Denki/Shinsou Hitoshi
   • Kirishima Eijirou
   • Bakugou Katsuki
   • Kaminari Denki
   • Ashido Mina
   • Sero Hanta
   • Aizawa Shouta | Eraserhead
   • Yamada Hizashi | Present Mic
   • Shinsou Hitoshi
   • Kirishima Eijirou's Parents
   • Age Regression/De-Aging
   • Hurt/Comfort
   • Established Relationship
   • Kirishima Eijirou Needs Therapy
   • Kirishima Eijirou Needs a Hug
   • he gets both
   • Insecure Kirishima Eijirou
   • Kaminari Denki is a Good Friend
   • Kaminari Denki Has ADHD
   • Age Regression Caregiver Bakugou Katsuki
   • Age Regression Little Kirishima Eijirou
   • supportive married erasermic
   • Self-Indulgent
   • POV Multiple
   • not sexual
   • not arguing about it
   • "sex positive agere" DNI

   Summary

   Kirishima lay in his bed, staring at the ceiling. Only a few minutes until time to go back downstairs and help Bakugou cook. Something rattled around in the back of the redhead’s mind, something Mina had said this afternoon. "He’s not a baby, Baku. You’ve turned into a real mother hen lately."
   It was true, in a way. Bakugou had been a lot more doting recently. And it seemed that he did so only when Kirishima was feeling… Well, a certain way. Kiri didn’t really have a word for it.

   This is a very self-indulgent, verbose, not-canon-compliant dive into my take on Kirishima Eijiro's age regression, how he identifies what's happening, and how his support network finds out. This one is what I would call more "real life" leaning, as far as tone goes. So, not the best for reading when small. There will be cursing, passing discussion of adult topics, and most of the fic will focus on the characters' inner thoughts/feelings. WIP, subject to changes as I edit! Warnings at the top of each chapter.

   FOR CLARITY: Age regression is not the same as age play, and the two should not overlap. This is an age regression fic. Please be respectful and do not put discourse in my comments. This is not the place. I block freely.

   Series

   • Part 1 of BNHA Age Regression AU

   Language:

   English

   Words:

   39,245

   Chapters:

   10/?

   Comments:

   14

   Kudos:

   56

   Bookmarks:

   10

   Hits:

   1,587