Kyōsuke Irie is the director of the Irie Clinic, the only medical facility in the rural village of Hinamizawa. In public, he presents himself as a cheerful, mild-mannered doctor who makes house calls with genuine warmth and is well-respected by villagers of all ages. He also serves as the coach of the local children’s baseball team, the Hinamizawa Fighters. This easygoing exterior, however, conceals a troubled history. Before coming to Hinamizawa, Irie was a promising neurosurgeon whose career was destroyed after he performed non‑consensual lobotomies in the name of psychosurgery. Shunned by the medical establishment, he was recruited by Miyo Takano to join her secret research project on the Hinamizawa Syndrome. Irie was drawn to the work because it aligned with his belief that extreme human cruelty could be caused by a brain disease, and he saw the project as a chance at personal redemption. He became the on‑site head of what is known as the Irie Institute, conducting experiments on living subjects and eventually developing an experimental cure for the syndrome. To avoid being forced to dissect a terminally ill child, he tested this cure on Satoko Hōjō, successfully stabilizing her condition; the treatment required daily injections and regular checkups at his clinic. Irie’s motivations are complex: he genuinely cares about the villagers’ health, especially Satoko’s, and has expressed a desire to adopt her, yet he remains unaware of Takano’s ultimate genocidal plans. His relationship with Satoko is protective and paternal, while his dealings with Rika Furude are cooperative, as she knows the truth about the repeated loops. Throughout the events of Higurashi: When They Cry – GOU, Irie continues in his dual roles as a trusted community doctor and a secret researcher. His development lies in the tension between his past sins and his present efforts to do good, though his ignorance of Takano’s true agenda often leaves him as an unwitting pawn. Notably, his medical expertise is his greatest ability, covering general practice, psychosurgery, and the development of a syndrome treatment that is critical to the story’s resolution. Despite his eccentric personal fixation on maid uniforms, his dedication to his patients and his quiet guilt drive his actions as a morally grey figure caught in the village’s cycle of tragedy.