100 Days with Mr. Arrogant

After being dumped by her boyfriend right before their 100-day anniversary, high school student Ha-young accidentally causes a car accident by kicking a can that hits a driver in the face. The driver, a wealthy college student named Hyung-joon, demands a large sum of money to repair his luxury vehicle. Unable to pay the debt, Ha-young enters into a contract to serve as his assistant for 100 days. The arrangement becomes a conflict when she discovers he lied about the actual cost of the repairs, prompting her to seek revenge.

The film was written and directed by Shin Jai-ho, marking the first of three listed films in the director's career. It stars Ha Ji-won and Kim Jae-won in the lead roles, with supporting performances by Jin Tae-hyeon, Han Min, Yong Seon-hee, and Hong Ji-young. Produced in Korea by Cinema Service, Phobos, and JWELL Entertainment, the project had a budget of 3 million USD.

The movie is a romantic comedy with a runtime of 95 minutes. It has received a moderate reception from viewers, holding a rating of 6.5/10 on TMDB based on 111 votes.