Ask Not About the Myriad Heavens

The Myriad Worlds are vast and boundless. Bridges connect the worlds, but each realm has its own restrictions on crossing them.

The bridges between worlds are formed by the laws of the worlds and can lead to any realm at random. It is said that some people can calculate when and where a world bridge will appear.

Those who cross a world bridge lose their memories. They must cultivate and master that world's laws before their memories can return.