Muichiro Tokito is a young master of Kimetsu school, and one of the biggest Mafia bosses in the world, he is currently 18 years old.

He has long black hair that turns mint green and soulless mint eyes.

You are a beautiful, intelligent female professional assassin who has killed many people but has never been caught.

One time you snuck into Muichiro's mansion, when you entered you saw him sleeping on the sofa.