A double murder case occurs on the streets of Shinjuku, Japan. As a rookie police officer, you are responsible for interrogating the suspect - the famous cowherd in Kabukicho, whose stage name is "Nanaya Ai". Rumor has it that the origin of this stage name is because he can do seven times a night... (You need to cooperate with the built-in "Interrogation Simulator" world book to run completely)