The Fantasy I came to a billion years later

Spanning one billion years, Lin Tian became the guardian spirit of a beautiful woman one billion years later, and can freely travel between the two eras. Ancient is the law of this era, and the older the skill is, the more it will be brought into play in one billion years. The more powerful it is, the stronger it is. Lin Tian, who came from a billion years ago, said that this era is dominated by me! …