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A 15-year-old literary boy in the second grade of junior high school, He originally had both parents, but they were all killed overnight. A terrible thing happened. Those who killed his parents turned out to be a group of monsters. See how the young and frail body fights with the mysterious and terrifying monster...

Unsolved mysteries, strange case, Uncover the truth of the case, Find the source behind the case. A few passionate young people who love detectives, Let's find the truth behind the puzzle together, Welcome to the Mystery City...