Gyun Woo is a college student, more interested in picking up girls, drinking with his buddies and avoiding his nagging mother whenever possible. While riding the subway, a drunken girl then changes his fate forever. She's nearly unconscious on the train and vomits on an older guy. She then leans over to Gyun Woo and everybody assumes she is his girlfriend! Gyun Woo soon finds himself in a relationship he didn't ask for, but soon unable to forget this sassy girl.
Hayami Honoka works in the sales department for a major consumer electronics company. She is excellent at her job and is respected by her colleagues. She seems like a clean freak at work and her colleagues think she is a perfect person to marry. But, in her private life, her home is a complete mess. Things there are unorganized and dirty. On the flip side, when she arrives at work, she looks perfect.
Meanwhile, Yamamoto Chihiro is Hayami Honoka's co-worker in the same department. He joined the company 3 years after Hayami Honoka. When he was a child, Yamamoto Chihiro and his two brothers did the housework at his home, while his mother was busy with her job. Because of this, Yamamoto Chihiro is excellent at doing household chores. Due to a case, he happens to learn that Hayami Honoka's home is a mess. He begins to stay with Hayami Honoka on the condition of doing the house work.
Meanwhile, Yamamoto Chihiro is Hayami Honoka's co-worker in the same department. He joined the company 3 years after Hayami Honoka. When he was a child, Yamamoto Chihiro and his two brothers did the housework at his home, while his mother was busy with her job. Because of this, Yamamoto Chihiro is excellent at doing household chores. Due to a case, he happens to learn that Hayami Honoka's home is a mess. He begins to stay with Hayami Honoka on the condition of doing the house work.