Ren Mikihara is a student at Jindai High. In addition to this she also acts as the school council president Hayashimizu Atsunobu's secretary. She also appears to have somewhat of a romantic relationship with him during the events of Fumoffu which he shares with her. To her classmates suprise her father, Mikihara Kenji, also known as Kenji the Killer, is the leader of a local Yakuza gang called the Mikihara Gang.