Shoushimin: Shunki Gentei Ichigo Tart Jiken

Kobato is a high school freshman who wants to live a normal life, not become a great detective. He tries to lead a quiet and modest school life with his like-minded friend, Osanai, but one mystery after another keeps coming his way. Even though he doesn't want to stand out, Kobato is compelled to solve mysteries. Will he ever find peace?

(Source: Kodansha, translated)