Mark's Hectic Schedule, Work to Be Done and Promises to Fulfill

Day 263 - 5:21 PM - Mountain Base, Mount Malabito, General Nakar, Province of Quezon

After receiving the core, Mark surrounded it with [Miasma] and stored it inside a metal case he created from [Blood Metal]. Only then did he put it inside a backpack he took out of his [Spatial Ring].

Why not put the core inside his ring? It was not like he did not try to. But apparently, he could not.

Mark could not put the core inside with his [Miasma] covering it. His [Miasma] could enter the ring. However, the inside of the ring was an entirely different enclosed sub-space, and he would lose control of his [Miasma] inside it. After all, [Miasma] was neither a solid nor a stable energy. It may run amok inside his ring and destroy it.