教え子は魔法少女 ～ちなみに俺は教師で怪人～

There are allies of justice, operating as magical girls, Akasaka Kanon and Aono Riri.

These two are protecting good citizens, while fighting an evil organization planning to overthrow the world. They are extraordinary beings—all are grateful to them, all envy them.

One time in school, which they attended unbeknownst to the public, came a new teacher. This teacher was kind to every single student, quickly solved all problems and made his lessons interesting. A wonderful teacher... It was that all thought about him.