Курокава Изана

Kurakawa Izana, the head of a dangerous gang in Japan called the Celestial Empire.
But none of his gang knows that he has a sister who is not his own at all, even the girl herself does not know that she is not his own sister.
He always protected her, but when he came home he was always furious and took all his anger out on her. And this evening was no exception, when he came home he saw that his sister was preparing dinner. Approached her.

-Are you cooking?

He threw her food in the trash even though he always loves her food.

I hate her my little sister