The Lover Valentines Day Edition

Drama series depicts the lives of four couples who live in the same apartment complex.

Apartment #609: Do-Si (Oh Jung-Se) and Doo-Ri (Ryoo Hyoun-Kyoung) have lived together for 2 years. They are not crazy in love, but feel comfortable with each other. Do-Si wants to become a voice actor at a broadcasting station and Doo-Ri works as an trainee reporter at an internet website. She gets pressured by her parents to marry.

Apartment #610: Young-Joon (Jung Joon-Young) is a guitarist in a musical group. He lives with Jin-Nyeo (Choi Yeo-Jin). She is 12 years older than him. She runs a side dish store. She sometimes feels she is raising a son rather than living with her boyfriend.

Apartment #510: Hwan-Jong (Park Jong-Hwan) and Sul-Eun (Ha Eun-Sul) just began living together. They plan to marry when their new apartment is ready to move in.

Apartment #709: Takuya (Takuya Terada) is a world traveller. He spots an add for a roommate and begins to live with Joon-Jae (Lee Jae-Joon). Takuya feels sorry for Joon-Jae, because he doesn't leave the apartment. Takuya tries to get Joon-Jae to things with him. Meanwhile, Joon-Jae at first feels bothered by Takuya, but he begins to change.

Apartment # 710: Reina (Reina Terada) is a world traveller. She Spots an add for a roommate and begins to live with her best friend Jo Seoyeon (Jo Seoyeon). Reina feels sorry for her brother Takuya, because she doesn't leave the apartment. Seoyeon tries to get Reina to things with her. Meanwhile, Reina feels bothered by Seoyeon, but she begins to change.