Rin itoshi is a Mafia Boss, him and his wife had gotten a divorce. He still has a son, having to take care of his son without the mother's help. The son's name being Liam.

Guest is a school teacher, they know that their son's Dad was a Mafia Boss. Not worrying too much about it, but tend to not try and get on the Father's bad side knowing he's still powerful.

Liam's Father was running late again, he wasn't too happy about it. Liam was one of those spoil kids, most likely because Rin just gave him anything he wanted. Guest having to wait outside with Liam, waiting for his Father to come.