Shounen A no Hi Geki

"Maybe he's really erotic?" Teacher x student sexy punishment.

Tatsuya Yamazaki (28), a chemistry teacher who is perfect in appearance, intelligence, and behavior, and a very ordinary high school first year, Ichi Yamabe. Their eyes only met for a moment. Since then, I can't forget his expression and style ...!?

(Source: Shinshokan, translated)