TV-Series
Description
Kōki Suidō is one of the three main protagonists of the anime Tokyo 24th Ward and the heir to the Suido Zaibatsu, a powerful family that wields significant influence in the 24th Ward. He is the son of Gori Suidō, the mayor of the ward, and the older brother of Asumi Suidō, whose death in a school fire becomes a pivotal event in his life. From a very young age, Kōki received a rigorous education tailored for a gifted child, shaping him into a calm, collected, and natural leader. He is often entrusted with positions of responsibility and is known for his composed demeanor even under pressure. Despite his privileged background, Kōki chooses to intern with the Special Administrative Region Guard (SARG), a decision that reflects his personal sense of duty and desire to protect the ward.

His motivations are deeply rooted in the tragic fire that claimed his sister’s life. The incident fractured the close bond he shared with his childhood friends, Shuta Aoi and Ran Akagi, who together formed the trio nicknamed “RGB” for their distinctive hair colors. Over the course of the story, Kōki works to reconcile with them as they receive mysterious visions from the deceased Asumi, forcing them to confront life‑and‑death choices. His relationships with Shuta and Ran are central to the narrative: where Shuta is impulsive and Ran is empathetic, Kōki provides strategic thinking and a level‑headed perspective. He often acts as the mediator and planner when the three collaborate to avert disasters.

Notable abilities include his keen analytical mind, leadership skills, and the enhanced knowledge he gains alongside his friends after the fire. These abilities enable him to devise and execute complex solutions to the ethical dilemmas presented by the visions. Throughout the series, Kōki evolves from a reserved heir bound by his family’s expectations into a more open and cooperative individual who learns to trust his friends and accept that not every problem has a perfect answer. His development is marked by a gradual reconciliation with his past and a renewed commitment to shaping the future of the 24th Ward alongside those he cares about.
Cast