Noble girl school saint Ekaterina that everyone admires. There from multi millionaire's young lady to the sports elite, beautiful girls were sending a calm campus life.

However to the school, there was the reversion system that can't visit from outside. The low-life yama of the caretaker despised with a dirty old man always, in fact it dominate the top of the school caste. Even the beautiful principal is located to the bottom layer of the caste, there was an appearance to work diligently to service to the high rank of the caste.

The new school term is received. the petty-minded yama looks for a new target. Top idol and young lady etc, their weaknesses were grasped and training was advanced.