People Are Destroying Ghosts: I Stole the "Flowing Blade Like Fire" While Sleepwalking

Traveling to the world of Demon Slayer: Kimetsu no Yaiba, Bai Yu became a member of Butterfly House. But because of the lung problem, he was unable to practice the breathing method that relies on the heart and lungs to stimulate his potential. Until one morning when I woke up, I found a Zanpakutō next to me. "Ding! You think you are too weak, and you actually slept in a different world all night and stole the Blade Ruohuo." ? ? Why do I think I am too weak? Please, I just have bad lungs. Wait, what did you just say? The flowing blade is like fire... This book is also called "I couldn't practice the breathing method because of the smoke in my lungs, so I picked up the Blade Like Fire!"