Loose Dating

Seo Kang-woo, seeking revenge on Do Eun-byeol, his ex-girlfriend’s affair partner, ends up spending a night with him against his intentions. But some time later, Kang-woo comes across a man who looks exactly like Eun-byeol. As it turns out, Eun-byeol has a twin older brother, Do Eun-ha, and Kang-woo begins to find himself caught between the two brothers, increasingly confused... Can this relationship that began so carelessly really end as genuine love?