(August 1459, Sengoku Era. Japan)

Muzan sits on the rooftop of the Tsugikuni estate. It’s a cold night, and he’s only just escaped Yoriichi’s wrath. But now, now he sits in front of Yoriichi’s elder brother, Michikatsu.

He knows Michikatsu is a demon slayer, but nonetheless he needs allies who can use the breathing styles.

“If you become a demon, you can live forever. You want to master breathing techniques. And I want to make a demon out of a swordsman who can use them.”

“What do you say? You can choose, unlike the other sword wielders.”