That Fool / The Accidental Couple

Through fate Postal Worker Dong-baek Gu (Hwang Jeong-Min) and famous actress Ji-soo Han (Kim Ah-Joong) crosses paths and after a series of events became involved in a 6 month contract marriage.

It all starts when actress Ji-soo gets involved in a car crash with her secret boyfriend driving the car. Desperate to cover up their relationship, Ji-soo drags an innocent bystander, Dong-baek Gu into the car, while her boyfriend flees the scene. The paparazzi then arrives and takes their photos. This brings Dong-baek Gu instant notoriety and things turn more bizarre when he continues to act as Ji-soo's boyfriend. The six months elapses like a midsummer night's dream. But he cannot just end up his love like a "dream". - DramaWiki

unlike many other dramas, this male lead is really ugly and old not that good-looking:S

couldn't find an English speaking trailer==

he had 3 wishes in return for the 6 months marriage contract,
and he used it all on her. so sad:'(

drama finished, study time:(

I only watched this drama because it kinda reflects you and me. maybe regret is the only way that will make you learn.