Fuyuhiko Kuzuryu is a minor antagonist turned protagonist in Danganronpa 2: Goodbye Despair. He is the Ultimate Yakuza.
Fuyuhiko remains confrontational during the first two chapters, and often utters death threats when angry. In Chapter 2, Fuyuhiko is revealed to have grown up with fellow classmate Peko Pekoyama. It is also revealed that he had a little sister named Natsumi, who was murdered, so he killed Natsumi’s killer. After Peko was executed for killing Mahiru Koizumi, Fuyuhiko changed and became a trusted friend and ally, surviving the Neo World Program and returning to the real world.
Fuyuhiko returns in Danganronpa 3: The End of Hope’s Peak Academy where he is a protagonist in Side Despair, and ultimately brainwashed by Junko Enoshima. He is briefly seen as a member of Ultimate Despair in Side: Future, leading an army of brainwashed Yakuza members against the leaders of the Future Foundation.
- Natsumi Kuzuryu - Natsumi is Fuyuhiko’s little sister, who he considers to be annoying and a pain. After Natsumi is murdered by Sato, Fuyuhiko is visibly upset by her death, and murders Sato himself as payback.
- Peko Pekoyama - Fuyuhiko cares about Peko as a human being, and rejects the idea of her being his tool. He is devastated by Peko’s execution to the point where he cries and begs her not to leave her. He also tries to save her at the cost of his own eye.
- Fuyuhiko lost his eye in both the real world and the Neo World Program.