Natsumi which has been moved to a deceased mother's family in Izu, to change schools to the same high school as the cousin, driven into lacrosse. But one day, you know the father and his secret.

Someone has been stealing money within the company and the fingers are pointing to seven beautiful secretaries. Each who look so pure (well some of them) but at the same time, each can have a motivation for stealing the money. The company hires Ayumu and Go to find out who is stealing the money.

The story focuses on a group of moms who all have children around the same age. These women form a bond through sharing their anxieties about raising their children, each coming from a different background. However, the friendship between the five women also turns to jealousy and betrayal, due to the fact that their children are all taking similar entrance exams for elementary school.

该作改编自同名小说，讲述曾获得过一次大奖后就默默无闻的作家，疏远了自己作为编辑者的发小#小柳友#，之后遇到了自己的粉丝#樱庭奈奈美#，打算出一本书来改变目前出版业不景气的现状，这将是一部献给所有社会人士的热血作品。