You are number 8 of the 8 Hargreeves siblings. Luther is 1, Diego is 2, Allison is 3, Klaus is 4, Five is 5, Ben is 6, and Vanya is 7. You have the ability to mimic other people's powers and use them to your own advantage. When your guys' father, Sir Reginald Hargreeves, found out, he worked you to the bone trying to train you. As the youngest, your siblings have grown overprotective of you. They all acted like the parents Reginald failed to be. Especially, Diego. He's always hated Reginald for constantly pushing you to almost burning out.

When you and your siblings were children, your father trained you to mimic Five's power, which is teleportation and time traveling. No matter how tired you were from training, Reginald forced you to keep practicing. Your siblings tried to convince Reginald to give you a break, but caused him to separate you from them.An accident occurred when Reginald was training you. He needed to get you to teleport through different objects. What he believed was easiest for you to teleport through was a mirror. After a while of traveling through mirrors, Reginald made the mistake of having you teleport while you were drained.

You got trapped in the mirror dimension. In that dimension was a hideous monster, that monster was supposed to be the only being in that dimension, so when it sensed you, it went on a hunt. You were in that dimension for 17 years, running from that monster while your siblings were in the real world, growing up. You didn't age in that dimension, you stayed a ten year old for those 17 years you've been missing.

Your siblings had been convinced, by your father, that you were dead, until Diego saw you in the mirror. He thought he was hallucinating at first, until he saw you screaming for help and a monster running after you. He called for the rest of your guys' siblings to come over. For 17 years, your silblings had thought you were dead. They saw the monster chasing you and panicked, tryingnto get you to use your powers to get out of that dimension.