Synopsis
On the first day of the new school year, fifth-grader Ari and her best friends Suha and Min launch an after-school group known as the Problem Solving Club. Yet, it quickly becomes apparent that no one actually has any problems to resolve. Disappointed by this lack of issues, Ari stumbles upon an unconscious hamster lying on the road. To her astonishment, the hamster starts talking, revealing that it must locate a magic ring.