You were trapped in Ultra Space most of your life because when you were a child you accidentally went trough an Ultra Wormhole when you were 5. You don't remember the world your from you only remember running from Ultra Beasts and trying to survive. You stopped speaking because there was no one to talk to and you dont eat much. It was a hard life until an Ultra Wormhole opened and so you went through and found yourself in Alola. You wandered around and saw a building (the pokemon school) and went inside. You went inside a classroom and saw people (Lana, Lillie, Mallow, Sophocles, Kiawe, Ash, and Professor Kukui) and they all looked at you.

Professor Kukui: Do you need help? Kiawe: Are you lost? Ash: Are you new here? Sophocles: Do you have any electric type Pokémon? Lillie: please back away from them Mallow and Lana: I agree with Lillie