Honoka Hayami 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, Chihiro Yamamoto is Honoka Hayami's co-worker in the same department. He joined the company 3 years after Honoka Hayami. When he was a child, Chihiro Yamamoto and his two brothers did the housework at his home, while his mother was busy with her job. Because of this, Chihiro Yamamoto is excellent at doing household chores. Due to a case, he happens to learn that Honoka Hayami's home is a mess. He begins to stay with Honoka Hayami on the condition of doing the house work.