.
.
.
The entire Dark Labyrinth was completely empty and there were no monsters either. I guess we can use this as a base of operations. Though I wonder if it has a time dilation or something like a Divine Realm. I also wonder if we can do more things here or not. And can she move it while we are inside?
"Silva, is there a time dilation here?" I wondered.
"…Dunno." She responded.
"…Can you move it while we are in here?" I wondered.
"Can't move." She said. "Can't close either."
"Eh? So you can't close the dungeon as long as there's someone inside?" I wondered.
"Hm." She said while seemingly agreeing.
"Huh…"
Check "The Protagonist's Sister Is Actually the Strongest"!