Da-Jin and Jae-Young have been in an all too comfortable relationship for the past six years. Although they don't live together, their apartments reside side by side. But trouble brews for the couple when they begin to fall for their respective co-workers. Can Da-Jin and Jae-Young's relationship survive these outside temptations?
Kim Ha-neul
Lee Da-jin
Yoon Kye-sang
Kim Jae-young
Shin Sung-rok
Lee Jin-seong
Kim Hye-ok
Da-jin's Mother
Lee Dae-yeon
Doctor
Cha Hyun-jung
Lee Ji-eun
Kim Jae-rok
Manager Kim
Ok Ji-young
Lee Mi-young
