Jump Force (oc reader)

A young girl named Ashlyn was just an ordinary wanderer, wishing for someone to train her on her journey with her guardian spirits, Mushu and Ami. And her partners, Pikachu, Eevee, and Lucario. Until one day, chaos starts spreading and two mysterious figures started battling each other. One of them fires a laser beam at the other. He dodges it but hits Ashlyn instead. She felt dizzy and then fainted and collapsed due to blood loss.

But when her life starts to end, a man named Trunks and a robot named Navi brought her back to life but as a hero. After fighting some inhumans called Venoms, Trunks and the man in orange named Goku asks her to come with them to their headquarters, which she gladly accepts. As they arrive to HQ and Ashlyn meets some strange people and getting to know them, Ashlyn meets the man in charge named Director Glover. He asks her to join Jump Force to help her with her training. After thinking about it, she gladly accepts.

Now Ashlyn will become the most strongest hero in the world with the help of her new friends and defeat Kane and Galena from world domination.