Kageura is presented as Kyuzo Miyabe's most reticent and intimidating former comrade-in-arms. By the present day he leads a Yakuza group, but he eventually agrees to explain his wartime experience to Kentaro and Keiko, providing important evidence about Miyabe's decisions and the promise involving Kenichiro.
Hayatonosho Matsuzaki is one of the retainers implicated in Motome's humiliating and painful death. Hanshirô challenges him and cuts off his chonmage topknot, forcing him into hiding until it can grow back. His disgrace is later revealed, and he kills himself with the other dishonored retainers.
Yakuza associate navigating the complex web of clan alliances.
Serial killer with the ability to detect parasites, used by police as a tool.
Aoki is Kujo's best friend and a member of the school gang. He celebrates Kujo's victory in the Clapping Game because he wants Kujo to dominate the school through casual violence. When he realizes Kujo never wanted leadership, he becomes devastated, challenges Kujo, loses, and grows alienated and hostile toward him.
Fellow high school student and manga creator who enters the same competition as Mashiro and Takagi, becoming one of their friends and peers in the industry.
Shinsengumi officer known for his eccentric personality and loyalty
Koji is described as Joze's childhood friend. When Tsuneo decides to take Joze to meet his parents, Koji lends them a car for the trip. The journey includes a planned stop at an aquarium and ends with Tsuneo taking Joze to the beach, where she sees the ocean for the first time.
A male participant who first propositions Office Lady to go downstairs, helping begin the group's initial pairings. Later, he expresses interest in Satomi Suzuki (University Student) because of her energetic passion, but Isamu Kato (Neet) objects before withdrawing after admitting he does not love her.
Rou is a fugitive who seeks refuge in a religious community after killing a man and a woman, admitting that he feels no guilt. He forms an uneasy intimate connection with Sister Theresa, challenges Father Togawa’s faith and forgiveness, and becomes involved in Tôru’s distress over abuse. His actions and reflections on guilt, faith, and punishment drive the story.
A boxer practicing at a local gym that Ichiko passes on her commute. She develops a crush on him, and they begin dating, which sparks positive changes in her life.
Juzo's former middle school bully who now works as his construction supervisor and lives upstairs with his family. Initially unaware of Juzo's identity, he later confronts him at the school, nearly gets stabbed, and desperately apologizes, which triggers a split between two realities.
Hirofumi Arai has 78 screen credits in a career dating back to 2001. Their work spans 9 cinematic universes — most prominently Parasyte Live Action Films with 2 titles. Signature works include Blood and Bones, The Katsuragi Murder Case, A Road Stained Crimson. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
Universe traveler — spans 9 universes
Related entry on Wikidata (Q5359450), public domain (CC0).
