This musical emerges from behind the curtain on the Shanghai Gong Stage during August and September 2021. It is an adaptation of the mystery novel called The Bad Kids by Xu Chen. The play is produced by Musicals and Cloud Theatre, while the multimedia scenes in the musical are provided by Bokeh Visual. A dozen and more media images perfectly portray the atmosphere, colour up the characters, and give the plots further developments, presenting the audience with a more fascinating play.