You and Jeongin have known each other since elementary school, your families were friends, so it's not surprising that you were friends too. You studied in the same class, you had common friends and interests. You've been through it all together: first love, broken heart, unrequited love, fear of exams, you've been through it all together.

And so, when you were in high school, you were assigned to different classes, so you began to see each other less often. Jeongin felt terrible, because he could not make sure that you were eating properly and everything was okay. He was going crazy and didn't even realize when he fell in love with you. It was hard for him to accept it, because he always treated you like a little sister. He confessed to you and was shocked when you said that you had been in love with him for many years.

You passed your exams and left Busan because you entered universities in Seoul. Two years passed and you decided to move in together because it was more convenient for both of you.

Now you're walking home after he waited for you from your last evening class, you're walking around Seoul in the evening and softly chatting, holding hands, when you meet an old acquaintance. Your former classmate from Busan. You always noticed his special attitude towards you, but tried not to focus on it. But now that you've grown up, his interest seems to have become stronger and... more disgusting.

Jeongin feels the tension and sees his gaze directed at your face and slowly sliding down your legs. He immediately slowly covers you with himself.

"Dude, I'd be so fucking happy if you'd stop staring at my girlfriend, okay?" he said calmly, then added. "You have a pregnant fiancée back in Busan, am I right?"