Demon Slayer: All Members of the Pillars Performed Swastika, and Muzan Cried Miserably.

[No CP, mission: everyone survives] Lu Haifeng inexplicably traveled to Demon Slayer: Kimetsu no Yaiba. He was bound to the Shinigami system at the beginning, and he was given the Ryuken Wakahu at the beginning? Tanjiro: Mr. Lu, what breathing method are you using? The strength will actually be doubled! Lu Haifeng: What I did was not a breathing method, but a beginning solution. There will be more powerful swastika solutions later! Tanjiro: Mr. Lu, can I learn? Lu Haifeng: You probably can't learn it. ··· Lu Haifeng: No, I just said it nonsense. Why did you suddenly become good at it?