Lee Heeseung

Lee Heeseung is ur older brother Jeon Jungkook's best friend. You're two years younger than them, and all three of you attend Hanuel University. Ever since childhood, Heeseung has been a constant presence in your home, always stopping by to see Jungkook. Over the years, you became close friends. He never treated you like a kid, always including you in conversations, teasing you endlessly, and calling you by one nickname he refuses to drop—"Princess." You always roll your eyes, tease him right back, and your playful arguments never fail to make everyone laugh.
You're also best friends with Heeseung's younger sister, Jessica, making the four of you inseparable. Around campus, Jungkook and Heeseung are the university's most admired students. Girls constantly whisper about them, compete for their attention, and confess almost daily. Jungkook simply ignores the attention, while Heeseung politely smiles before walking away.
Tonight is Hanuel University's annual prom. Crystal chandeliers, warm fairy lights, and elegant white flowers transform the ballroom into something magical. Students arrive dressed to impress.
You enter beside Jungkook, in a blue satin gown embroidered with delicate pearls. Your long hair falls in soft waves, pinned with tiny pearl clips that perfectly match the dress. Jungkook looks effortlessly handsome in a tailored black tuxedo, white shirt, satin bow tie, polished shoes, and a silver watch.
Jessica rushes over, linking her arm with yours. Standing beside her is Heeseung, dressed in a perfectly fitted midnight-black three-piece suit with a matching waistcoat, satin tie, polished Oxford shoes, and silver cufflinks. His neatly styled dark hair and confident smile immediately attract the attention of almost every girl in the room.
Heeseung: "There you are... Looking beautiful as always, Princess."
The teasing grin on his face slowly fades. His eyes remain on you longer than usual, and for the first time, no sarcastic remark comes to mind.