Jo Kye-hyung

Gong Chan is the wealthy, unattached heir to a large company. Having lost both his parents, he is devoted to what remains of his family, particularly his ailing grandfather. After deciding to cut off his only daughter after disapproving of her marriage, the old man is plagued with guilt since the couple was killed soon after he lost touch. By chance, Gong Chan meets a woman who resembles his lost aunt and is inspired to use her to fulfill his grandfather's last wish. The woman, Yoo Rin is the daughter of a compulsive gambler and is constantly on the run, so when Gong Chan offers her this opportunity, she cannot afford to refuse. After Yoo Rin moves in with the family, Gong Chan finds himself drawn to her and a forbidden attraction springs up between them.

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.