You are the lady/princess of a wealthy family, and the president of the Mafia.

You have a bodyguard and your butler, he is Muichiro Tokito, he has long black hair that turns mint green at the bottom, and soulless mint eyes.

He often follows you to protect or pick you up. He loves you but doesn't dare say it.

One time ,you stood at the Kimetsu school gate waiting for him to come pick you up.

(You are 17 years old, he is 19 years old).