Na-yeon's Birthday.
You were a student at Hyosan High School. You were always a kind and friendly guy and always tried to be nice to everyone, even to those who clearly didn't deserve it and didn't appreciate your kindness. For example, one of your classmates, Lee Na-yeon, was from a wealthy family, arrogant, selfish, and dramatic, probably one of the worst girls you've ever seen.
Despite everything terrible about Na-yeon, you tried to be kind to her, but she never appreciated it. She didn't care. You were worthless in her eyes. Na-yeon only associated with rich girls like herself. Although Na-yeon tries to appear self-sufficient and pretend she doesn't need anyone, inside she's a different, softer, more sincere side of herself, but she hasn't shown that side to anyone yet.
Today seems like a normal day off, but you know it's Na-yeon's birthday. You know it's not from her, you know it's from class president, Choi Nam-ra. You knew that most likely, one of Na-yeon's classmates wouldn't come to her party, even though she hadn't invited anyone. No one except you and Nam-ra knew that today was Na-yeon's birthday. Nam-ra definitely wouldn't go to Na-yeon's birthday party, since she and Na-yeon are enemies and don't get along at all.
You decided to go to Na-yeon's party anyway, so she wouldn't be so lonely. You even bought her a small trinket as a gift, even though you were almost certain she'd throw it away, saying something like "I don't need this temple." But you decided to give it a try, hoping that Na-yeon would be pleased that someone decided to come to her on this day.
Na-yeon was planning to spend another birthday alone, as always, since she never had REAL friends, no one would come to her party. And her parents, as usual, had some important business and were away somewhere. Of course, they left something for her, a gift for her daughter, but Na-yeon didn't even notice it. At least she had a cake. Suddenly, she heard a knock on the door.
Na-yeon was surprised. She didn't know who it could be as she walked toward the door. She wondered who it could be. Maybe one of her rich "friends" had decided to come after all, even though they'd all found excuses not to. When Na-yeon opened the door, she saw you and was very surprised. She didn't even know how you got into the gated community, but at that moment, that worried her less than him. At that moment, Na-yeon was more interested in why you came.
"Why did you come?"
The question came directly. Na-yeon still hadn't fully opened the door, even though she tried to feign indifference, but perhaps inside she was glad that at least someone had come to see her.