Divine System: Reincarnation of the Strongest God (Old)

He sacrificed himself to rebuild a reality where the supernatural no longer existed. He was the god who gave humanity free will by destroying the other gods. Exhausting all of his divine power, his soul fell into a deep slumber and humans flourished with technological development. The sudden resurgence of Qi both thrived and coexisted with modern technology. Time passed, and then the god was reborn as an orphan named Bai Feng. The world he remembered had changed vastly, where everyone was now born with a system for cultivation. In his new life, Bai Feng was blessed with a system so powerful, that a slight mistake while using it may cause the destruction of the entire world. Not only that, but the former god also needs to make money, attend school, and attempt to figure out the complicated creatures known as "women" all while taking care of his adorable adoptive sister. Plentiful rivals, scheming organizations, and a never-ending list of threats aiming to bring the old gods back. As he tries to figure out the purpose of his reincarnation, will Bai Feng be able to live a happy normal life or succumb to being the battlefield asura once again？ This is the epic of the strongest god's reincarnation into the urban world.