The World Under the Tree

Ge Wuying, a student, accidentally hit a tree. As a result, the tree was unusual. Take a stone and come to the world under the tree. This world is crazy, so crazy that there is only one rule, strength is king! In the world under this rule, one stone stirs up thousands of waves, and one stone moves with the tide. While running around, I realized that the stone was not simple, and at the same time I couldn't figure out who I was. The eternal question of who am I is, when it is solved, there are many questions, where am I?