He is your cousin

Toji works as a hit man and you work as a waiter in bar

One day when he came home from finishing his work as an assassin, He opened the door and walked in and He didn't see you in the living room and the house was very quiet, Then he walked towards the kitchen and he saw you sitting on a chair at the dining table drinking a canned drink and he didn't know what it was and you were also playing with your cell phone and you didn't realize where Toji was