Don't Call It Mystery 1 [Mystery to Iunakare 1]

College student Totono Kuno is brought in for questioning after Sagae, a former high school classmate, is found murdered — Totono was seen arguing with someone who looked like him the night before. He categorically denies any involvement, but rather than simply waiting to be cleared, he starts questioning the investigating officer, Inspector Yabu, and everyone else connected to the case.

Totono stands out for his bushy hair and his finely honed powers of observation and deduction. All he wants is to return to his own quiet little world, but his blunt, gentle insight keeps pulling him into one mystery after another — starting with figuring out who really killed Sagae.