Elementary School Students in the World of Detectives

Is goodness the absolute goodness? Is evil also absolute evil? A good person becomes a bad person when he does a bad thing... A bad guy is a good guy when he does a good thing... What exactly is on the back of the mirror? Finally one day the mirror broke, and a terrifying game emerged, in which countless people were involved. In this environment, what is terrible is the human heart... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.