Hundreds of cash-strapped players accept a strange invitation to compete in children's games. Inside, a tempting prize awaits — with deadly high stakes.

Ean has a critical mission to return to the future to save everyone. However, she becomes trapped in the distant past while trying to prevent the escape of alien prisoners who are locked up in the bodies of humans. Meanwhile, Muruk, who helps Ean escape various predicaments, is unnerved when he begins sensing the presence of a strange being in his body. Traveling through the centuries, they are trying to prevent the explosion of the haava.

The politician Koo Myung-hui finds his wife in the garage. She is cleaning her son's bloodstained car, which has just run over a person.

At some point, they dreamed of becoming a part of the national taekwondo team, but now, they have surrendered to reality. There were three friends, Hoon-i, Seong-ho, and Tae-yeong.