Love Junkie

Right after graduating high school, Yewon falls headfirst into an affair with the charming but married Han Ju-eon. She knows it’s wrong, but she doesn’t care. She’s in love.

*“I want to hear you say it. Are you having an affair with that guy?”

“Fine! We're having an affair. So what?”*

Things start to spiral when their classmate Jeong Hwa-ik catches them in the act and makes her an offer of his own. Whether out of spite, curiosity, or something darker, she agrees.

"Even if I sleep with someone else, you’re not going to leave your wife, are you?"

(Source: Lezhin US)

Note: Includes one extra chapter.