Sky Domain of the Large Universe. The People who live in the Sky Domain are actually human beings, but they no longer consider themselves humans. The people here are evolved humans.
In the sky race, there was a saying: One Universe, Three Divine Treasures, Four Star Destroyers
One Universe represented the final treasure of the celestial race. Nobody knew what it was. The Three Divine Treasures were treasures merely inferior to the Celestial Race's ultimate treasure and had been used to protect the Celestial Race for generations. Below them was the Star Destroyer. The Star Destroyed Sword was a sword that the sky race forged with the strength of their entire race, and it was forged from Star Stones and Star Energy that the sky race gathered at high speed. It had taken a huge amount of effort to be forged. If the user was recognized by the sword, the user could draw on Stellar Energy in space, and its power would absolutely be capable of destroying the world around them!