The Worst Guy Ever (2007)
Original title: 내 생애 최악의 남자
The Worst Guy Ever is a 2007 Korean-language comedy movie directed by Sohn Hyun-hee, with a running time of 1h 34m. It stars Yum Jung-ah, Tak Jae-hoon and Yoon Ji-min.
Ju-yeon and Seong-tae's decade-long best-friendship comes to a crashing halt one night after they sleep together. The shock of doing the deed subsides, reality sets in, and the two decide to get married.