123Movies. Do-kyung struggles to get ahead, while Byeong-tae already fell behind a long time ago. A dejected youth, Do-kyung juggles her studies and part-time work at a convenience store. Meanwhile, Byeong-tae is burdened by his mother’s hospital bills. Just when he sees a light at the end of the tunnel, Do-kyung ruins everything. An inevitable showdown between the two begins.