The worst man in my life. The most awful man in my life. Ju-yeon, who can't hold her liquor, often gets drunk and is carried back to her place. On the other hand, Seung-tae, who always considers himself honest and rule-abiding, has no luck with women due to his ineptitude in handling relationships with them. The two are close friends of ten years, both firmly believing in the possibility of true friendship between men and women. However, as stories of marriage fill their surroundings, Ju-yeon becomes the only one among her friends still unmarried. To console the disheartened Ju-yeon, Seung-tae keeps drinking with her. Unexpectedly, after a night of drunkenness, the pure friendship of ten years leads to a confused one-night stand. The next morning, the two find themselves lying in the same bed, staring at each other in shock.
Main cast: Yeom Jeong-ah, Chak Jae-hoon, Yoon Ji-min, Shin Seung-luck, Cho Hee-bong.