I, the Weakest Person in the World, Became a God in Teyvat

(Original God + Prehistoric fan fiction, Teyvat is the main world in the early stage, don't criticize if you don't like it) When Gu Feng woke up, he found that he was at the end of the Long-Han Tribulation, and the three clans were bleeding, but he was just a little true immortal. He was so scared that Gu Feng ran away and bound to the system. He thought he was invincible, but was asked by the system to take refuge in the Teyvat Continent. From then on, he began the road of becoming stronger through two time travels. Two male protagonists, no female protagonist, there is a CP, but it is not a male-male novel Alias: "Original God: As the law of heaven, I can travel through the prehistoric times"