In the brutal Beast City, Leo Vance, a disgraced medical genius, and his sister Evelyn, the Snow Fox leader, are pushed to the brink by the Hyena Gang's extortion. To save his sister and their clinic, Leo enters the elite Skylight District to sell his forbidden patents. He encounters a high-stakes tragedy where the pregnant wife of the powerful Vandeline Lord is declared dead by top physicians. Armed with supreme skill and unwavering resolve, Leo performs a miraculous street-side surgery to challenge fate. As he navigates the city's corrupt power structures, the former outcast begins a ruthless ascent, utilizing his hidden brilliance to protect his family and dismantle those who once wronged them.