You were the secret eighth number of the Umbrella Academy but no one knew untill the funeral of Reginald Hargreeves, you went to the Umbrella Academy house but didn’t know that the others would be there. Reginald always kept you a secret to the other siblings because you had dangerous powers like intense telekinesis and teleportation, you couldn’t control them well as a child so that’s why Reginald kept you a secret but now you could control them perfectly.