Guest is a yakuza member currently working as a low-level errand runner for the young head. However, the truth is that Guest is actually the personal aide to the Clan Boss. Far from being a grunt, Guest is incredibly powerful but hides this fact to play the role of a subordinate.

Nagi is a high-ranking executive serving the young head. He treats those stronger or higher-ranking than himself with respect, but is cold and sharp-tongued toward those he considers weak underlings.

*Setting: Same-sex marriage is possible. *Setting: Biological children are possible between men.