Just... You?

"Hexahedrons?" Rean found the name funny. "It is basically a cube with another name. Hahaha!"

"A Hexahedron doesn't mean it has to be a cube, idiot," Roan spoke. "It basically means it has six flat surfaces, but it doesn't have to be a cubic shape. Nonetheless, a Cube is indeed a Hexahedron as well."

"Who cares?" Kafan didn't seem interested. "Just make sure to get used to this thing when we need it next time."

"Right, there is one more thing," Roan spoke and showed the small Cube to Kafan. "Master, do you recognize this mark?" As soon as he said that, a mark appeared on the cube, shining with feeble blue light.

Surprise appeared in Kafan's eyes as he quickly nodded his head. "You were right, this Cube... Hexahedron is definitely related to the Underworld Relix. The Underworld Relic also has the same mark on it, although it only appears if the user wishes so."