What I remember about the manga was that the mc was a student, his class got a new teacher but he hates teachers. So he plays a prank on the teacher the first day that involve a chalkboard eraser but his teacher manages to catch it after somehow catching himself from falling.
He later gets ratted out by his classmates for being he one to play the prank because they did not want to get punished with him. So the MC starts to think of ways to get back at the teacher sexually that seems to fail every time until he realizes his feelings from him.
What I remember about the manga was that the mc was a student, his class got a new teacher but he hates teachers. So he plays a prank on the teacher the first day that involve a chalkboard eraser but his teacher manages to catch it after somehow catching himself from falling.
He later gets ratted out by his classmates for being he one to play the prank because they did not want to get punished with him.
So the MC starts to think of ways to get back at the teacher sexually that seems to fail every time until he realizes his feelings from him.