A boy falls to his death at school, but Ok Chan-mi does not believe that her twin brother, Park Won-seok, committed suicide. Chan-mi transfers to her brother's school, Yongtan High, and meets Ji Soo-heon, who witnessed her brother's death. A "hero," who avenges bullied students, appears at Yongtan High. Chan-mi speculates that it may be connected to her brother and starts looking for this hero.

Kang Min Joo (Kim Hee Ae) is a pragmatic, single, 40-something television producer who has no time for love and pretends she doesn't want any either. Deep down, though, she does wish ...

A weak high school student and a mighty gangster exchange their bodies accidentally.

The story follows a character from the Joseon Dynasty who travel 400 years into the future to the modern era and unwittingly open a restaurant, leading to a series of comedic and chaotic events.

A comedic mystery that follows two genius high student and a female police detective as they solve cases that arise while following the disappearances of the boys' parents.