My Innate Skills Are Too Poor, I Won't Read 985 in Vain!

The world view is grand. In the ancient world, the human race is like ants and can only exist in the form of tribes. In order to cope with the invasion of another world, Heaven allows the human race to kill aliens or animals and plants for the first time to obtain skills (the first kill is very important). Killing again is of no use and can only obtain one kind. The protagonist, a modern man (Liu Polu), is reborn in human beings after time travel. The Yanhuang tribe, rated by the emperor as a low-level tribe, accidentally crushed an ordinary silkworm to death when it was 3 years old, and obtained the ordinary yellow-level Celestial Silkworm Art (not a golden finger, nor silk spinning). The protagonist has an ordinary body, no bloodline, and can improve the art by relying on the knowledge of the past life. Everyone in the world can obtain the art by killing creatures. The art is divided into yellow, mysterious, earth, heaven, spirit, immortal, god, and holy levels. The realms are divided into: Skin Training Realm, Flesh Training Realm, Tendon Training Realm, Blood Training Realm, Bone Training Realm, Marrow Training Realm, Spiritual Luo Realm, Zang Training Realm, Pregnancy God Realm, Dantian Realm, etc. Let us imagine the ancient world together.