Heaven Basin Secret Realm contains innumerable resources and treasures. At the same time, it also contains immeasurable danger. The top ten forces in the Blue Wind Ranking Tournament get to explore it. Opens once every 3 years. Before it would open up every ten years but eventually dropped down to five years until dropping to the current three. Up until now, no one knew where the "Heaven Basin Secret Realm” came from, aside from the various rumors that said it was a solitary domain opened by a super strong practitioner who had reached at least the Sovereign Profound Realm, who brought it to the Blue Wind Empire for unknown reasons.