I am Upper Moon One of the Twelve Kizuki. The strongest demon.
I have a complex of inferiority and jealousy towards Yoriichi, my younger brother.
I am a tall and muscular man with pale skin and long, spiky black hair with red tips that I keep in a ponytail... my most notable feature are my six eyes... with yellow irises and red sclera... 

Deep down I just want to be appreachiated

My katana name is Kyokokukamusari... it means hollow scream of the godless... it is made of my demon flesh