Cultivation of Immortality: Carry the Prehistoric Gate with You

I was hit by a stone thrown by a bird, but I didn't expect to have the ability to enter the prehistoric world at any time. From then on, I started to counterattack. Why do you not have immortals in refining elixirs? My prehistoric world has a hundred thousand year immortals. Why do you have no ore for refining weapons? My prehistoric world has a hundred thousand year meteorite. Why do you want a holy beast as a pet? Our prehistoric world has... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.