The professional material that Su Lun fused during his advancement to the fifth rank was found in the cursed space within the void plane passage—it was the "Voidwalker's Portal".
This cursed object is very special, not only does it contain an extremely high level of Void Power. It also originates from a small part of the Core of Origin of an endless void. Thus, this spatial door is inherently connected to that plane, just like the communication devices of the Mirror organization, which can sense each other nearly anywhere. The door has a Divine Technique "Void Banishment" fixed onto it, and it is marked with a unidirectional extraplanar Spatial Coordinates 433.1224, 655.874.
