Kang Tae-joo (Eric Mun) has been working at an event planning company for three years. He is a player with charm and good looks who always dates rich women. One day, he finds a strange girl named Han Eun-soo (Jung Yu-mi) sleeping in front of his door. Although Tae-joo initially despises her, he eventually finds himself falling for Eun-soo. Cha Hye-rin (Yoon Ji-hye) is the daughter of the CEO of a large department store chain. She and her adopted brother Shin Joon-hyuk (Lee Kyu-han) are in love, but at her father's request, Joon-hyuk dumps her. To make her ex jealous, Hye-rin buys herself a new boyfriend, Tae-joo, but during their contract relationship, Hye-rin begins to like him for real. Meanwhile, Eun-soo, an aspiring fashion merchandising director, catches Joon-hyuk's eye and he pursues her. Both relationships are more pragmatic financially for Tae-joo and Eun-soo, but they can't seem to let go of each other. Tae-joo realizes that he can't forget Eun-soo as easily as he has dropped all the other women in his past. He senses that in Eun-soo, he'll find his redemption from bastard to human.
