Prehistoric Cultivation of Immortality

When Tang Yu, an otaku, rescued a girl who fell into the water in the park, he was sucked into the prehistoric world by a mysterious whirlpool and found himself in a barbaric era full of primitive tribes and unknown dangers. Being brought back to the village by warriors from primitive tribes, they faced the huge challenges of language barrier and cultural differences, while showing wisdom and knowledge that transcended the times. After discovering the ancient immortal cultivation technique "Hunyuan Tao Jing" in the tribe, he began to embark on the path of cultivation. At the same time, he discovered that there are supernatural powers and mysterious organizations in this world. The hostile tribe "Black Stone Tribe" attacked Tang Yu's tribe with the help of mysterious monks. Tang Yu relied on his beginner's ability to cultivate immortals and modern knowledge to help the tribe resist the invasion. Lin Yue, a girl rescued by Tang Yu, showed extraordinary abilities, suggesting that she had an important connection with Tang Yu's time travel and the secrets of this world.