So, with the Underworld being a location and Hades being an NPC, here's a question. Hibiki possesses the God-Killer power, her Gungnir being a Philosophical Armament of Deicide. Rather than give the longer and frankly strange explanation of it's origin (though I can if asked), I'll just sum it up. The God-Killer power is formed from "2000 years worth of curses", which makes it a fundamentally sinister power, even if Hibiki chooses not to treat it as such.

Hades is, pretty obviously, a god. Obviously, Hibiki doesn't have any ill intentions, but if she were to make it to his throne room... would Hades be able to "sense" this power coming off of Hibiki? And if so, how would he react?

Edit: Additional question that occurred to me later. If Cerberus happens to be woken up... Hibiki is a lycanthrope. Can there be any potential bonding between two puppers?