RBK-105 After a long time, I reunited with Mao-sensei, who had been secretly involved in bondage play behind the scenes… Natsuki Maron

Mao Natsukawa is a kind and cheerful female teacher. But at night, she becomes Vice Principal Kuroda’s bound servant. Every night, she is tied up and left gasping in a dazed state. It all began two years ago, when it was discovered that her student, Minase, had been working a part-time job without permission and smoking, and was threatened with expulsion. When Mao later ran into Minase by chance…