- Shu Wei, a secondary student who is a complainer, was always bully by 3 of his classmates. As a punishment, their form teacher decided to punish them to serve a lonely old man. One night, four of them accidentally caught a little monster when they are stealing old man's security box. They going to disturb the monster everyday after school and this makes them become friends. While enjoying disturbing the monster, they do not know unexpected troubles are getting closer.....