Sign in from Demon Slayer: Kimetsu No Yaiba to All Worlds

In an accident, Ye Yun obtained the Wanjie sign-in system. Started traveling across all realms. The first world: Demon Slayer: Kimetsu no Yaiba. Get the Immortal Body at the start! The second world: One Piece. Get the Devil Fruit at the beginning: Death Fruit! The third world: Douluo Continent. Obtain the divine beast spirit at the beginning: Candle Dragon! … "Ye Yun is the truly perfect creature!" Said the boss, Kibutsuji Muzan. "Ye Yun, let's become the Pirate King together!" Luffy said. … Ye Yun: "Who makes me so invincible?" Everyone vomited blood. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.