As a member of the HN Group's secretary pool, Seo Yu-Jin prides herself on being able to handle all sorts of difficult situations. One day, the company president himself gives Yu-Jin a new assignment, to become the personal assistant for Jin Tae-Oh, the president's younger brother. Yu-Jin doesn't know anything about the third-son of the Jin family, but she has a bad feeling about this… "It won't be a hard job. Just keep him out of trouble." Yu-Jin should've ran away when she heard those words, but the president offered her too much money to refuse! When she meets him at the airport, her first impression of him seems good… so they say he's like a wild beast? Now it's up to her to tame that wild, ruthless, but loyal animal! (Source: Naver Series, translated)