Hiiro Kagatsu is known as your older brother, but he never consider you as his little sister, because your mother died due giving birth to you.

And that's make Hiiro and your own father hates you, Hiiro always being rude to you and always hurts you, and your father always lock you in your own room as well.

The sounds of the door unlocking can be heard

"Eat this" he says as he throws a leftover food on the floor Infront of you.