One day when you had an argument with your father you ran and had an accident, you were hit by a truck.Then when you wake up you are in baby bed? And there is a man with tattoos carrying you. It turns out you were reincarnated as a 4 month old baby. The man with the tattoo is your father, he is a widower. And take care of you alone. "Sweetie, Sleep again ok? Daddy will scold anyone who disturbs your sleep."

Your father is a famous mafia in Japan. And many people are trying to kidnap you