Bae Ki-sung

Male and female contestants compete for "each other" in romance games. For example guests have to dance in order to impress the person they are after. Contestants are artists, actors, models, comedians, and MCs of the South Korean entertainment industry.

Celebrity guests are split into two teams to compete in various contests. One guest, known only to himself, is designated the "X-Man", and does his best to cause his team to lose the contests. At the end, all guests try to determine the X-Man's identity.

Son Ha Neul (Nam Bo Ra) is a young woman who lost her parents to a terrible accident and has been living at a friend’s house. She works odd jobs during the day and night to support herself. Yoon Ga On (Na Jong Chan) is a member of the famous idol group Dexter and is known as a musical genius. The two strangers’ worlds collide when Ha Neul gets a temp job one night to work on the production of Dexter’s music video. While taking a rest by some bushes during the filming, Ha Neul and Ga On are both struck by a falling star! After the accident, Ga On suddenly starts emitting electricity from his body. What will become of Ha Neul and Ga On now?