Chen Chao, a modern cow horse, worked hard part-time because his father was ill. An accident occurred on his way home after receiving his salary. He traveled to the prehistoric era. He witnessed the first calamity of Long Han, Nuwa's creation of human beings, the sanctification of the Three Pure Ones, the calamity of the Lich, the calamity of the Three Sovereigns and Five Emperors, the calamity of the gods, and then the Jedi Tiantong. Tonghe fell into a deep sleep by himself, and did not wake up until the Spring and Autumn Period and the Warring States Period. He traveled around the land, talked with the sages of the human race, and witnessed many amazing and talented celebrities in history. He wanted to get involved many times, but he was afraid of changing history and not being able to see his parents, so he could only keep sleeping until he met someone!
