Meeting again (part 2)

Before Calvin and Michael started telling Daimon what they have been through, one of the countless shadow hands that previously came from his shadow returned from the depths of the castle with a black mineral box, which then handed to Daimon.

"Here, change yourselves, I'll wait here", he said as he handed the contents of the box to those four, naturally what the box contained where their storage rings.

Strangely enough, inside this black mineral castle, spatial treasures did work, the reason as to why, their rings hadn't been stolen but were just confiscated is that they were linked to their owners, since they were given by the academy to the members of the elite class.