Three Time-Travelers Entered the Prehistoric Era: the Great Prosperity of the Prehistoric Human Race

Three teenagers who love reading ancient novels and fantasy novels accidentally traveled through the ancient world and became the Xuanyuan clan, the Suiren clan, and the Youchao clan respectively. Sensing the prehistoric spiritual energy, the Xuanyuan family realized the divine dragon's prison-suppressing power, the Suiren family realized the merit spirit fire technique and the fire-burning all-heaven technique, while the Youchao family realized the enlightenment technique in dreams and the conjuring all-heaven technique. What will be the fate of the three of them? What will be the fate of the human race? I'm not very good at writing introductions. I've read too many prehistoric novels, and I plan to write a novel about the prehistoric human race that doesn't rely on saints, heaven, or systems. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.