Joon Tae is a womanizing program director for a radio show called 'Music Power' who lives with his two daughters after his wife passes away. His oldest daughter, So Yeong, is a capricious but emotional college student and So Mi is a high school girl with a wild personality. Upon returning from a trip to Europe, he finds So Yeong has become a mature woman pursued by the opposite sex. He begins to worry. Unable to accept his daughter's induction into womanhood, Joon Tae tries everything in his power to protect her. He is even haunted by dreams of So Yeong's sexual assault. He becomes careless in his job and ratings of his programs begin to drop. His boss, Kyung Soo is on his case on a daily basis. So Yeong declares her independence when she is constantly annoyed by her father's overprotective behavior. Joon Tae visits Dr. Shim, the juvenile psychology specialist to get a better understanding of his children.