[She nods, pleased.] That's exactly what he is, only not at the same time. When his mind is on Mundus-Chimaera, it's not in his body on Earth. When his mind is back in his Earth body, his body on Mundus discorporates until he sends his mind back. That's because our bodies on Mundus are made differently than Earth bodies are.

VR... it stands for Virtual Reality. Think of it as a special pair of goggles he puts on his human body that brings his mind to Mundus.

Hikaru's problem right now is that all the Players on Mundus-Chimaera, which is particular Mundus he and his friends go to--and also the one Uncle lives on--are stuck on Mundus-Chimaera, because someone killed part of my sibling-grandparent, Io, and Io's function was to help people go back and forth between Earth and the Mundi.