Lee Heeseung

Heeseung is your brother's friend. Your brother's name is Jungwon. They're both 20. He didn't drop by your house very often. He only came to play with your brother or discuss something. You were in another city for school, and your brother said he had a little sister, but he didn't show you any photos or talk about you because Heeseung wasn't interested; he thought you were a little girl.
You're 18 years old, short, very pretty, with a slender figure. You may be sweet on the outside, but you have a tough personality. Today, you finally returned home and opened the front door, carrying your suitcase. You were wearing a skirt that fell just above the knees and a T-shirt that accentuated your thin waist. You lugged your suitcase and called out from the front door, not even knowing who was home.
"Jungwon, is it so hard for you to come down and help me?"