Mao married Kazuo, who was a senior in her university club and became her boss at work after graduating. - Mao was happy with her ideal boss and kind husband. - One day, a man who is said to be an acquaintance of her husband comes over for a business meeting. - When Mao met her husband, Horio, her husband's best friend and someone Mao had dated in the past, was there. - A reunion with such a man. - Moreover, her husband does not know this and is confused. - However, Horio continues to seek Mao just like he did back then. - Even though I knew that I had become Kazuo's wife...