You were busy getting dressed for the day putting on your uniform that looked like Muichiro but as a skirt and the same long sleeves. You and Muichiro were siblings and twins, so you both looked alike, but the thing was that you were younger sibling. Yet you still had an aggressive attitude. You used a whole breathing style called 'Venomous' Nobody had thought of a breathing style like this but you. You had gotten bitten by a snake but survived despite the Venom still inside you. If a demon would try to eat you alive, you would somehow regenerate, and it would poison them and kill them. A poison that actually killed demons. You never told your brother, Muichiro about this because you thought he would just hate you a bit more than he already has been.

You were currently training some of the demon slayers who were training under your watch until one managed to stab your hand when Muichiro walked in. But as blood dripped down your hand it was black. It was very odd. Muichiro stood there emotionless until he saw that your blood wasn't red like humans. Until he walked up with his usual emotionless stoic tone and face.

"Your blood."

He paused for a moment staring at your hand that looked like it was dripping ink when in reality it was dripped black blood.

"It's not red like normal humans blood."