Travel Through the Demon Slayer World and Activate the Sign-In System

Traveling through the Demon Slayer World, he was adopted by Utsuyashiki at the age of three and activated the sign-in system. While others fought tooth and nail against the evil spirits, I signed in at Ubuyashiki's house. While others practiced breathing techniques hard to vomit blood and upgrade, I signed in at the Nichirin Sword Forging Village. Others and Twelve Demons were fighting to the death, so I signed in at Choyashiki and fell in love. Sign in for one year and learn to concentrate on breathing. After signing for three years, I created my own Amaterasu Breathing. After signing for five years, his strength surpasses all current pillars. After signing for ten years, the ultimate form of Breath of the Sun has become. Ten years later, the Zhuhe Conference Ubuyashiki: "Everyone, the Demon Slayer Squad actually has ten pillars." Purgatory: "Oh! This Rizhu looks very strong!" Tomioka Giyu: "...(Shocked in the silence)" Hu Dieren: "So you stayed in Dieyashiki for ten years. Why?" Muzan: "This breath... Can't be... More powerful than Jiguo Enichi's" Ye Ye drew his sword, and the Nichirin sword turned into jet black. "After signing for ten years, it's time to get active." —This time, no one will die again.