探偵くんと鋭い山田さん 俺を挟んで両隣の双子姉妹が勝手に推理してくる

[DeepL Translation - needs review] Volume 1 Introduction: New school year--I screwed up. I had let slip that my parents' job was detective, and my classmates started asking me for advice. I was trying to guess the culprit of an out-of-print novel, the mystery of a knife wielded in the art club, and I was getting into trouble, but... But I was thinking, "Well, that's not a case in the first place, is it? How about taking a multifaceted viewpoint?　Tomura-kun. No matter what happens, the Yamada...