Ren Ishikawa

A serial (3) killer leaves a GPS code of his next target with each victim - this time Hotel Cortesia Tokyo. A detective goes undercover as hotel staff - haircut, manners etc.

An anonymous letter is delivered to the Tokyo Metropolitan Police Department. The letter states that a criminal of a murder case will appear at the countdown party Masquerade Night that will be held at Hotel Cortesia Tokyo.

A college student spends his year at the seaside town of Izu, having fun on the beach with his school friends.

The Kisigari students return to Heavenly Host Elementary where if you die, the memory of you will forever be lost.

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