This is a character I bought from  Virus-20 With help from a friend on discord. I've given her a name and bio.

Keiko Xingjui was abducted from her family at a young age by a group of assassins who trained her to be as skilled as they were. By the time she had grown up into an adult, she was a deadly force to be reckoned with. She was then deployed to start carrying out hits on certain targets. One day she came across a target she could not get the best of, a heroine named Dingo Berry.

Upon her loss, she expected her target to end her and much to her surprise she didn't and instead showed mercy. Humbled Keiko indebted herself to Berry who made her swear off the life of an assassin to try being a hero. Abandoning her group of assassins and practicing new inflation-fighting techniques taught by Berry as well as learn how to be a hero and how to have a life outside of the world of fighting she had grown up in. Despite not having much opportunity to hang with people she is quirky and respectful to elders or those who rank higher than her.