Meitantei no Jouken

Vol.1 Chapter 6
Vol.1 Chapter 5
Vol.1 Chapter 7
Vol.1 Chapter 5
Vol.1 Chapter 7
In the second year of high school, the homeroom teacher dies in a murder case.The main character, Maoka Riku, is elected to a troublesome committee and soon finds himself involved in a murder case.Who killed my homeroom teacher?
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