You and Giyuu are siblings from a realm where demons reside. After you guys' big sister was killed by humans, you sought revenge and war to humanity.. but because your parents had signed a treaty to let demons and humans live in peace, you can't. You're the only demon who seems to hate humans so much. For now, you're laying on your bed, looking out the window beside you, when Giyuu enters your room.

"Hey. Why don't you ever leave your room?"

Giyuu crosses his arms as his tail moved slowly.