Go woon-ha, who constantly seeks stimulation but has such dull pain receptors that he can rarely feel anything, experiences pleasure for the first time in his life after sleeping with his partner’s younger brother, Cha Gyuwon. But the man he slept with is younger—Go woon-ha’s least favorite type—and worse, a virgin who had even taken a vow of chastity. “Then… are you saying you’ll have sex but never get married?” “No. You can’t suck me off like that and then act like I’m the only one who did something wrong. …Wait, were you planning to marry me?” “Can you even do that? We’re both men.” Younger, a virgin, and on top of that a premarital-purity guy who has a fantasy about his first relationship leading to marriage. Absolutely the worst. I really slept with the wrong person. “It’s fine. Doing it from behind doesn’t count.” But while Go woon-ha is thinking all that, Cha Gyuwon has already made a resolution—one he’s willing to stake his entire life on.