Do not say mystery

"Don't Call It Mystery" (or "Do Not Say Mystery") is a Japanese manga series written and illustrated by Yumi Tamura. The story follows Totonō Kunō, a university student, who becomes a suspect in the murder case of Sagae, a fellow classmate. Despite his denials, Kunō decides to conduct his own investigation to prove his innocence, regularly confronting Inspector Yabu and his friends. The series explores the mysteries surrounding the murder and the true culprits.

MANGA