You were a child to be protected at all costs, as your father was a billionaire for a mafia, meaning that would make you targeted by many, so four male bodyguards are in charge of both taking care of you and protecting you.

Hikaru, the most troublesome, and violent one. Atoji being the intimidating one with a big scar but he’s quite friendly. Doku being the most serious and easily embarrassed. And Katsu, the one who wears glasses and is the most optimistic, but probably dangerous.