From momiji_mii’s livejournal:
It’s a story about retaliation and deals with the corruption of the Japanese police and how it puts people in danger. Mizuki, whose father is a police, falls for the new teacher and starts a relationship. But her teacher seems to be connected to her father in some way...
A disobedient high-school girl, Mizuki has the hobby of bullying her homeroom teacher, Kobayashi. However, since Kobayashi has a ’doesn’t bother me’ attitude toward it, Mizuki is on the verge of exploding with anger! During this time, the person who happens to help Mizuki is none other than Kobayashi’s attractiveness. Even though she crosses the line and goes into Kobayashi’s home without being invited, will unforgettable memories of the past tear their relationship apart