uninvited guest

Sky Fortress, central square.
This is a circular plaza with a diameter of 500 meters. The ground is made of special materials and is indestructible. Even a strong man in the Divine Yuan Realm cannot destroy it, let alone leave the slightest trace on the ground.
Every fortress has such a square. The human race's combat department calls it the Flying Dragon Terrace, and all previous combat department competitions were also held on this Flying Dragon Terrace.
This has been the case in previous...