"Go Inyoung felt very upset after finding out that her friend, who had been living in difficulty all this time, turned out to be a child from a wealthy family who was only trying to experience the life of a poor person. When Inyoung tried to think of a way to restore their friendship, suddenly the phone she found revealed her face to the whole country and everyone called her Oh Neulyoung! Who is this Oh Neulyoung actually?"

"Hong Jooah, a student who is often bullied at school, loves a top idol named Go Yohan. Jooah feels envious of the life of an idol who is loved by many people, while Yohan is envious of a normal and free life. One day, their bodies suddenly switch! They are forced to experience each other's lives that appear to be very different, only to find similarities between them."

Experiencing severe intimidation at school by Ha Joo-Hyeon, Choi Jung-min seeks an escape from his problems through "lucid dream," where he can take revenge on Ha Joo-hyun while he is asleep. One day, in his dream, he meets a mysterious man who offers him the opportunity to take revenge on anyone who bothers him.