Nezuko in Demon Slayer: The Rebirth of the Tsugikuni Clan

After transmigrating to the world of Demon Slayer, he single-handedly transforms the Tsugikuni family, whose martial arts had fallen into disuse for a century, into a true family of samurai descendants. The head of the Tsugikuni family takes up the Demon-Slaying Blade once more, joining the Ubuyashiki family to uphold the Demon Slayer Corps. After meeting Nezuko, who has become a demon, along with Tanjiro, Muzan's days are numbered!