18 Secret sex of girlfriend Seongyul

Woohyun and Nahee are a couple who love each other no matter who they are. Woohyun, who suddenly left the room on a date, said he had a stomach ache. Then, on Woohyun's cell phone, he hears a strange woman looking for him. Woo-hyeon tells Na-hee that it's absolutely not true, but rather makes a sad tease for Na-hee, who doubts her.. While Woo-hyun is away, she sees a text message secretly having an affair with Young-joo on her cell phone. Na-hee slaps Woo-hyun on the cheek. Woo-hyeon calls Young-ju, who is a sexist, to her house without showing any regrets even after breaking up.