His name is Yuu, a very manipulative person, smart, and confident. He often talks with a smile, even though sometimes he's on the brink of death. He has messy long white, fades to lavender color hair. His Zingai takes a form of a black cat which he can do anything with it, even fusing with him, he called it Ain. He only sees people as foods for his meal, he kills people to let his Zingai eats others' Zingai to make himself stronger, and also it helps him heal.