Plot - A story of two strange couple one rich and one poor who makes a contract of 100 days with the lady during which they fall for each other.
100 Days with Mr Arrogant is a romantic Korean movie of a girl who is dumped by her boyfriend on the 100th day of their relationship. While Hyeong-jun is a rich and handsome man who always attracts ladies wherever he goes but hates dating women.Stressed by her recent break up, Ha-yeong kicks a soda can out of anger which hits Hyeong-jun who was driving his luxury car. Which makes him loose the car control and he smashed his car against the wall. Being not so rich Ha-yeong is unable to pay for the damages of the car which makes him to sign her a contract contract that binds her to his service for 100 days. Those 100 days were the days when both lives changes and they start having feeling for each other.