[Shishiji] Fumihazushi. (COMIC MILF 2014-12 Vol. 21) [Chinese] [黑条汉化]

There needs to be an ntr doujin that makes you just straight up miserable (no incest tho, maybe a childhood friend, girlfriend or a crush?) like usual the protagonist comes to discover his love interest, who he thought was pure and innocent, was a willing whore being used by the antagonist of the doujin with no regards to herself or her mind. Then the guy who’s doing all the controlling is then cuckolded himself! In a worse way than before. Either by an outside 3rd party or the now mentally recovered protagonist. Not only that, the antagonist gets his just Dessert served cold and is either prosecuted (in case of adult vs minor) or dealt with (forced accident). And the girl who was originally a “victim” but is now a participant, is ntr’d as well by the protagonist (who had already moved on and had a better girl in his life now.) when she tried to go back to him.