Raising the Northern Grand Duchy as a Max-Level All-Master - Chapter 136

He, since childhood, had followed the Foreigner to practice the Defying Heaven Art, entering the most secretive special forces and becoming a fearsome assassin that made others tremble at the mere mention of his name. After a single failure, he took early retirement, but he ended up as the personal bodyguard for a rich heiress, a school beauty. Accidentally provoking some mysterious Cultivators, he gradually unveiled a hidden world of Cultivation beyond the mortal realm...

The most vulnerable time in a tennis game is when you are leading; even if there is a match point, the game is still possible.

Football is round, tennis is also round.

- Description from novelbuddy

This is a story where the protagonist who obtained hypnosis does whatever he pleases and assaults girls at school. There are many lines where common sense is rewritten and unconscious assault. Not just s*x, but the particulars regarding the process, the situation, and the atmosphere of what occurs prior to the act are written about as much as possible.