Former Vigilante; Mirai Sasaki x Reader

(You are Y/n Jelavić)
Once her parents died, she found the man who killed them. Then, she killed that man. That was the start of how she became a hit woman/vigilante for the Japanese Government. She saved some people who had gone through the same thing. She did go to school, she majored in Business, Fashion Design. She soon was taken away to an experimentation facility and they forced a couple of quirks into her body. Then, they released her after two weeks.