After awakening from a four-year coma, a former assassin wreaks vengeance on the team of assassins who betrayed her. She swore revenge on those who tried to kill her and her supposed child, and in the end she got what she wanted. After killing 100's of people, she finds her husband bill along with her 4 year old son, Y/N. She Kills Bill and leaves with her boy to Japan to start anew. But then the world starts to change, people are showing quirks, supernatural abilities that randomly came on earth with kids being born with them. Y/N Kiddo was not one of them. Being bullied and feeling left out, Y/N started to uncover his mothers past and see the natural born killer she was, he begs her to train him, but she refuses. She doesn't want to bring her only child up that way. She didnt want her son to haunt her with her old ways. But there's a consequence for everything. I do not own MHA or Kill Bill.