Tsukasa Kaidou

A participant in the Adult Tomodachi Game. Allegedly a yakuza boss, as well as the adoptive father of Satone Kaidou. Despite the two not being blood-related, he deeply cares for his daughter and shows full confidence in her gambling ability and gut feeling. He's actually revealed to be a detective under orders from Sawaragi's father, with his status as yakuza being a cover in order to make his infiltration of the Tomodachi Game easier.