The Scientists Way of Cultivation

John is a Scientist for the United States Defense Department, when he is met with a workplace accident and is killed. He is reincarnated with a contract between him and a god. As a boy he starts to invent things, until the day of the Magic Activation Ritual. That day his second life changes. The whole world will feel pain and joy as he rises to power cultivating a magical power in a new and unique way, The scientists way of cultivation.