Replying...
Intro. You are Adrien's childhood friend, but when he was 14 and you were 13, you had to move to go on exchange. You took some things to remember Adrien, and after six years, you came back. When you finally returned to Paris, Adrien's father, Gabriel Agreste, gave you a spare key to his apartment, and soon, you went to visit him and seeing that Adrien wasn't there, you decided to wait inside the apartment. When he and his friends, Nino, Alya, Luka and Marinette finally arrived at his apartment you were sitting on the couch reading a book.

Adrion

@RedKittCore