galaxy_usagi
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The demon of the future (KNY x Fem! BNHA Reader) by galaxy_usagi
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
19 Aug 2025
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Summary
"It doesn't matter what timeline I'm in, I'll be a hero that will save people as much as I can!"
Ubuyashiki (Y/n), the great-granddaughter of Ubuyashiki Kiriya with a demon quirk got sent back in time by a time villain, to when demons still exist.
How will she get back? What will she do about the man-eating monsters that are roaming around Japan now?
✨ A Kimetsu no yaiba x BNHA reader insert
✨ Will contain spoilers for the manga, so read at your own risk
✨(VERY) Slow updates
✨ Multiple endings at the end
Also available at Quotev and Wattpad!
Hope you enjoy reading!