Aaron is now in a pickle.
He can either claim the dungeon or ignore it.
The dungeon is a good place to earn EXP. Unlike his family before, Aaron intends to create a big and powerful family once he reaches higher ranks, and every family needs resources.
Where to get those resources?
Dungeons.
One may think Where is the resource here? This is an EXP dungeon, but they are wrong. EXP is the most in-demand resource, except that it has a limitation: it cannot be traded like other resources.
Unless one finds themselves in a position where they can't level up anymore, gaining EXP was the most common and in-demand resource.
So, for a big family, having a few dungeons under their control is mandatory.
Though this dungeon is something not even newbie Rank-5 professionals can tackle, which means only a few elites find use with it, still, it would be useful, especially if some genius takes birth in his family.