Fleeting Butterfly (儚き蝶) – Demon Slayer Season 4 / Infinity Castle Song

► This music/sound is free to use for any purpose, including commercial. No copyright restrictions apply. If you use it, I would greatly appreciate it if you could credit me in your video description with: Music/Sound by [ANIME FREE MUSIC] - [Link to this Video/Channel] ● PLAYLIST -    • ANIME SUMMER 2026   ► Dive into the tragic beauty of Demon Slayer: Kimetsu no Yaiba The Movie: Infinity Castle with this original song, "儚き蝶 (Fleeting Butterfly)." Inspired by the grace, vengeance, and sacrifice of Shinobu Kocho and the Butterfly Mansion, this track captures the delicate yet deadly nature of a warrior fighting in the endless darkness of the Infinity Castle. If you love anime music (Song/OST), dark emotional ballad themes, and the intense world of Demon Slayer, make sure to like, comment, and subscribe for more original anime-inspired tracks! 🦋⚔️ #demonslayer #kimetsunoyaiba #infinitycastle #animemusic #epicmusic #animesong #demonslayermovie #animecover #amvmusic #tanjirokamado #muzankibutsuji #demonslayermovie #ufotable #nocopyrightmusic #DMCAFree #AnimeRemix #CopyrightFreeMusic #CreatorSafe