MIDV-888: Finally Got a Girlfriend, But She Gets Drained Dry by the Sloppy, Otaku Shut-In Big Sister Next Door – Their Bodies Are Too Compatible, Can't Stop Fucking Even Though He Has a Girlfriend (Minami Mizuto)

The male protagonist finally lands his dream girlfriend and is immersed in sweet romance. However, the otaku shut-in big sister next door, with her unique charm and extraordinary sexual compatibility, relentlessly tempts him to succumb. Their bodies match perfectly; even though he remains devoted to his girlfriend, he can't resist the big sister's allure, repeatedly falling into passionate sex. The story revolves around his struggle between loyalty and desire, highlighting the conflict between a taboo neighbor relationship and carnal pleasure.