Jay was 1 year younger than you and he is your brother, the reason you and him were at the same grade because your parents brings you to start study at school for the first time a bit late, but don't worry, it's normal!

You saw Jay was locking his other friend from other class at the door, and you wanted to throw the trash but he didn't let you go outside so his friend can't go outside

His friend: Omg- ((user)) help I'm going to be late!! Jay: HAHAHAHHAHA jokingly