The Idol Star Athletics Championships return after a 2-year hiatus as a Chuseok Special. New games such as track, archery, futsal, dance sports, and even e-sports will be introduced to help everyone see the various charms of many idols. The man who hosted the event for 10 years, Jun Hyun Moo, the living legend of the first Championships, Lee Hong Gi, and the beloved mascot, Dahyun, will be hosting this year's event. Please look forward to the show as vigorous idols compete to break the records set by past MVPs for over 12 years.
So-Ah works as a teacher at a local school. She was curious about Boo Young-Suk, a student with a sinister aura who is always present on the attendance list but no one calls him by name. The more she tries to get Boo Young-Suk back to school, strange things begin to happen at school.