The son of Tommy Sully (Avatar x Male Sully Reader)

Back on Earth before Jake took his brothers place for the Avatar program, His identical twin older brother Tommy was married and had a son. Jake's brother was very closed with his son before the events of Earth becoming a dying planet.

However in the 22nd century when earth was about to face extinction , Tommy was about to ship out to Pandora, but it wasn't long when Tommy was killed by thief who stole his wallet. The death of his brother impacted Jake, but little did Jake notice that his nephew was more affected than him. After Tommy's passing, his mother was affected by an unknown Virus and passed away leaving Y/N by himself, As Y/N mourned the lose of his parents he was approached by civilian Researcher Doctor Sarina Stone who was a member of the UNSC. She adopted him and made him join the UNSC, as he was in the UNSC he reached the rank of spartan leader.

As he did, he realized that he had a mission to Pandora. And he is willing to find his Uncle and Reunite with him.