Go Eunha, who's been desperately seeking any kind of stimulation after becoming numb to it, finally experiences pleasure for the first time in his life with his partner's younger brother, Cha Gyuwon.
However, he's younger than Go Eunha, something totally out of his usual type. On top of that, he's also a virgin who’d taken a vow of chastity.
“So, you're gonna have sex without getting married?”
“Hey, you can't suck my ass like that and then act like I'm the only one at fault. ...Were you seriously thinking about marrying me?”
“Can we? We're both guys though…”
A younger virgin who's already thinking about marrying his first love. This is truly the worst. I messed up by getting involved with him.
"It's okay, what happened between us doesn't count.”
But, differently from Go Eunha, Cha Gyuwon made a vow that would affect his entire life.