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After hearing Brunhild's information, I got a bit pumped up over the possibility of somehow merging both dungeons into an S Rank Dungeon. But that should wait for later to be honest. Right now, there are more important matters. I quickly opened the Dungeon Information and then glanced at the monster spawning function…
The weaker monsters, which are C+ Rank can be summoned for 20k MP, B- for 50k MP, B+ for 70k MP, and then there are A- Rank monsters for 100k! However, that's kind of all. The entire Dungeon's Mana capacity is overflowing, as its maximum amount is a 100 million! Yeah, it is a tremendous amount because it is a B Rank Dungeon.
Of course, I cannot drain this Mana out for myself, but I can spend it into summoning monsters for EXP… the only thing I can actually do for now. It seems this dungeon has completely banned any drops. There are none! The only treasures are the natural ones. I guess it is not within the dungeon's traits or something.
Check "The Protagnist's Sister Is Actually the Strongest"!