A hapkido teacher named Jang Man-ok (Hwang Jung-eum; Man-ok means "full house" in Hanja) poses as a stylist for top idol group TAKE ONE and moves into the band's luxurious house, which superstar musician Lee Tae-ik (No Min-woo) inherited from his father. A love triangle emerges as Lee vies against fellow band member Won Kang-hwi (Park Ki-woong) for Jang’s affection.