When four best friends try and move forward in their work and personal life, they realize that trying to live their life's dream is more difficult...

Set four years after the first movie, Lin Xiao, Lily, Nan Xiang, and Ruby, confront opportunities and challenges as their school days come to an end.

This is a mystery-solving adventure story about an idol girl Xiao Zao An (with a hidden personality named Ai Di Sheng) and genius detective Mi Ka Ka...