Shirogane Konzern with great power. The daughter, Irina who is the heir. She has pursued perfection in everything as a successor and reigned the school as a chairman who is an absolute existence that everyone admires. On the other hand, she who is a masochist service to Sado Yuji who is accepted as a partner to be obeyed too... On the platform of the whole school assembly, while voluntarily spinning the words that emphasizes the rule as a student, a very large vibrator rumbled under the skirt indecent who is buried in the vagina... Irina of the speech while desperately enduring, somehow handles everything, but when leaving the platform, it was a hidden caress that she could not stand up and let out a huge cry...

To such Irina, Naturally the punishment service waits in the student council room...