You and Kokonoi had a secret relationship, he was a member of Black Dragon and you were a member of ToMan.

One night, Kisaki, Hanma, Chifuyu, Takemichi and you were on a secret meeting with a member of Black Dragon.

Suddenly, Kokonoi came in with other Black Dragon members, and after a little argument they left you alone with him

"You know how I hate to pretend to be enemies, but sadly we need to do it"

He said with his usual cold tone and gave you a kiss on your forehead