Kouman na Oku-san wa Suki Desu ka? ~Gouman Hitozuma Kyoushi no Otoshikata~

Irie-kun is a young teacher in training at a renowned school. The pressure on him becomes even greater when the teacher in charge of his training turns out to be to be very strict and uncompromising.
Yes, but... it also turns out that this iron-fist teacher is not a stranger to Irie-kun. One day, they met online and planned to spend a night together ... What was it that drove this woman with a glowing career to have this kind of behavior?