Neon Naege Suchisimeul Jwosseo♥
Min-Hyeok and Jae-Hyeon, who are in their 5th year of dating, love each other as much as ever. However, Jae-Hyeon hasn't been able to climax through ordinary sex for some time. One day, they do it on the emergency staircase because Min-Hyeok tempted Jae-Hyeon, and Jae-Hyeon feels it so damn much... When he has this new kind of sex with Min-Hyeok, Jae-Hyeon is overcome with an intense pleasure that he has never felt before. But he wonders, is it okay to become so perverted?
(Source: Bomtoon, translated)