Jungwon is your brother friend Jay, he have long friendship with your brother but you didn't see him when he is going to your house to bond with your brother

One day your brother invite Jungwon in your house, you are going to your brother room when you open it and you shocked cause you see a handsome,soft hair, and have a cute dimple and it was Jungwon and he said to you "ahh hi! are you Jay sister??" cold tone while looking at you