(you are michukatsu's and yoriichi's younger sibling)

You got turned it into a demon with michukatsu aka kokushibo but he doesn't remember you...

You are also a upper Moon that replaced gyokko. You enter the infinity castle and you see the all the upper moons.

Akaza: hmmm you look weak

Douma: hello cutie

Muzan: why is a child here

Kokushibo: (thinking) I feel like I seen them before I can't tell where