Criminal Syndrome

Takashi Muto's younger sister was the only important person in his life. Their parents died at a young age, so Takashi became both a brother and a father figure to his sister. However, his sister is now dead, and the main suspect in her murder is a delinquent who committed suicide after being released due to insufficient evidence. One year after these tragic events, Takashi Muto still believes that the case is not fully resolved. His partner, Wataru Kaburagi, who was the deceased girl's ex-boyfriend, shares this belief. However, unlike Takashi, Wataru prefers to keep his own thoughts private.