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.