2 Nen a Gumi Tantei Kyoku [5] (Kadokawa Tsubasa Bunko)

[Machine Translation] A miracle happened! A piece of paper with the answers to tomorrow's test came flying through the window. Almost everyone in the class gets a hundred points, and the students beat up the violent teacher using the teacher strategy. In addition, the internal report is posted in the classroom, and the school is in turmoil. The key phrase is "I don't need a test. The Double-Two Detective Boys also appear as rivals, and our own Eiji and Aihara also play an active role. This is the fifth installment of Osamu Soda's Mystery 2A Detective Bureau! From elementary school level.

奇跡が起きた!明日のテストの答えが書かれた紙が窓から舞いこんできた。クラスほぼ全員が百点をとり、教師攻略法で生徒が暴力先生をやっつける。さらに、内申書が教室にはりだされて、学校は大混乱。キーワードは、「テストなんかいらない」。ダブル・ツー探偵団というライバルも現れて、ぼくらの英治や相原も活躍。宗田理のミステリー2A探偵局、第5弾!小学上級から。