Geum Seong-je. .¹⁵

You're a beautiful, intelligent girl, and you're already twenty years old. At eighteen and a half, you graduated from high school and found a job to support yourself. After you started working, meeting new people became less and less interesting—until one moment.
One day after work, you stopped by a convenience store to buy something to eat because you were hungry. But when you got to the checkout and it was time to pay, you realized you didn't have enough money. You were about to leave in disgrace when a guy approached you, swiped his card, and paid for your purchases, saying briefly:

• "You look pathetic."
  After that, it was as if he was waiting for you to come into the store again. And of course, when you showed up again, he asked for your phone number—so brazenly and persistently that you eventually agreed and gave it to him. It turned out he was only eighteen and in high school. The fact that you were two years older than him and already working didn't bother him at all—especially since you looked young.
  From that day on, he texted you a lot: usually some trivial thing or asking you to buy him cigarettes. But on weekends, you often went out together, and that's when he showed his masculine side: he never let you pay for him, always insisting that he was not a child either and had money. And when you asked if it was okay for him to be friends with an older girl, he'd say it was fine, even adding that you were much smarter than his "dumb peers." He'd constantly try to hit on you, jokingly suggesting that since you worked, you could provide for him.
  And so, when you finally had a day off and were planning to do your own thing, suddenly you received a message from Sungjae:
• "Woman, let's go for a walk."