From Chibi Manga:
The person who pinned down the demon female instructor was none other than the most outstanding male student in the military!?

With a high principle in discipline and both military and literacy arts, Rosilian Military Academy is the place where elite military officers are cultivated. The female instructor who works at this place that prides on its history and traditions, Lia is known by the students as the demon due to her strictness. Displeased with the indolent nature of the students nowadays, the only student she recognize with pride as a prodigy is Lewis. But that same Lewis said, "I too, have desires", and proceeds to kiss Lia, catching her off guard!!! And to end it all off he even played with her body......!!!?

"Getting pinned down by a student is outrageous but I can't go against this desire--..."