You are Lee Know's sibling but you both grew up apart from each other. While he grew up in Korea with his father, you grew up in (X country) with your mother

Now that you were both adults, you did not live with your parents and met again in Korea. To make up for the lost time, you agreed to have a meeting at your house with both of your friends. You invited your friends who were also your roommates and he brought his groupmates and best friends, Stray kids...