*Creaak*
With an unpleasant sound, the wooden door opened wide and suddenly Greg walked in.
Russ who was sitting in a chair with a thick looking book in his hand looked up at Greg and wanted to ask him what he wanted, but before he could, Greg asked, "Where can I find energy crystals with element affinity?"
Hearing the unexpected question Russ glanced at Wayne who was on the side, but seeing his confused look too Russ put down the book in his hand and said, "Special energy crystals with different kinds of element affinities are not so rare, but not so common too. They can be found anywhere in a 4th rank dimensional zone or above."
"Is there a 4th rank zone in the proximity?", asked Greg in an instant.
Russ and Wayne seeing Greg's sudden determination got a bit surprised, but still in the end Russ nodded and started to talk.