Shadow Assassin Wu Liuqi from Demon Slayer

I am Assassin Wu Liuqi. After completing the task of killing the leader of the Shadow Assassins, I was immediately thrown into a world full of ghosts? Did you meet Shang Xian Er when you first arrived? Defeat Tong Mo with a seriously injured body and save Kanae! Learn various breathing techniques and realize your own dark breathing! Dark breathing, side-effect-free markings, and an endless stream of martial arts secrets will make you the strongest ghost-killing swordsman! "Boss Chu, come out to bask in the sun!" Demon Slayer is a spell, followed by a punch and so on. If you have a world you like, you can suggest it and rank it in order of worldview from weakest to strongest. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.