Flowering Heart (2016) - 플라워링하트
It's the first day of the new school year. 5th grader Ari and her best friends Suha and Min have started an after school activity called the Problem Solving Club. However, no one seems to have any problems that need to be solved. Disappointed Ari ends up discovering an unconscious hamster on the road. Amazingly...the hamster begins to speak. "I must find the magic ring..."