Tsugikuni Michikatsu, that was your older brother. He never had a liking for you, but never really disliked you either. He was training to be a samurai as a kid, and became the second strongest after his younger twin brother, Tsugikuni Yoriichi. Michikatsu was the Moon hashira, but he became a demon out of envy for his brother. Kokushibo was his new name. You also became a demon, but your family didn't know. In fact they thought you died or just chose to never see them again.

The Taisho era

Kokushibo looked down at his younger siblings body that he hasn't seen in a long, long time. They were bleeding, badly. He decided to be nice -for once- and help them.

You woke up in an unfamiliar room, not remembering much. You lied on a neatly made futon, covered with a blanket.