Synopsis: A romantic comedy tells a 12-year love story between two individuals with completely different personalities. On Jun Yong (Seo Kang Joon) is a nerdy university student who doesn’t care for fasion and wears plain clothes and glasses. He is very meticulous and sensitive, always plans out everything in advance and overthinks things. During a blind date, he meets noisy, expressive Lee Yong Jae, and they start dating. Lee Yong Jae (Esom) is almost the exact opposite of Jun Yong when it comes to personality traits. She a is spontaneous, emotional and somewhat daring girl who had to go through a difficult childhood, as she and her older brother grew up without parents. At the age of 20, an ambitious and hardworking Lee Young Jae wants to get rich, so she refuses to attend university and starts working as an assistant at a hairdresser.