Shadow Rogue - Chapter 55b – Final Stand

Xiaya reincarnated in the Dragon Ball Universe as a Saiyan 12 years before the destruction of Planet Vegeta.

Watch him as he creates the strongest legend of Dragon Ball World from the beginning.

- Description from Novelupdates

A high school student that has lived as a mob-character ―― Mimori Touka

An introverted girl has had enough of the isolation inadvertently formed by her self-imposed isolation. Things changed when she discovers that she has the ability to transverse across the fabric of our universe into the dimensions of multiple storylines. Not only do these storylines leave her with invaluable lessons – they also impart a portion of their power – if she is deserving of it. The time has come for Zhao Youyue to change her fate. She will be a Side-Character, or perhaps…something more!

Though he received the skills necessary to teleport across worlds, the king who performed the summoning ritual attempted to trick him into wearing a slavery collar, this annoyed him so he kidnapped the princess and returned to Earth.