Reborn of the Genius AssassinEpisode 2

Top assassin Blood Shadow destroys the Dark Shadow island lab rather than die as their puppet, then wakes reborn as Isabelle Jenkins, an overweight, bullied schoolgirl. She crushes bullies, escapes her abusive family, wins $450,000 racing, solves an unsolved math problem, scores a perfect SAT, and attracts tycoon George Harris. As Hacker X, medic and racing legend, she helps George destroy Dark Shadow, then marries him before the world.