Another saiyan escaped the explosion of Planet Vegeta. Though this Saiyan landed on Equis (Pre-NightMare Moon Banishment). Luna finds Kale and decides to take him in and care for him as her own. She has to keep this alien warrior child a secret from Celestia however, or Celestia may think he's too dangerous to have around...
(http://vignette4.wikia.nocookie.net/dragonball/images/c/c5/Heroe(DBH).jpg/revision/latest?cb=20110316185157 Basic Look of Kale)

(Also, sorry if the prologue and the first chapter are a bit...rushed. Nothing else will be rushed)

Mitchell isn't what you'd call a social teen. He'd rather stay at home alone with his electronics rather than go out to the mall with a friend or go walk around the neighborhood. Some nights he'd dream dreams, big dreams. He knew what they meant, he longed for an adventure. He was tired of the same boring day routines. He wanted something different, something new. One early morning, he woke up in his same old bed in his same old house in a colorful world filled with ponies and other mythical creatures...yep...same boring old---WAIT WHAT?!