Makes sense I guess.
I wasn't really thinking of Hunter as a guy with a Palace.
For those unfamiliar with Persona 5 and Palaces, the idea is that they're mental pocket dimensions in the Cognitive Realm known as the Metaverse, made of the corrupted and negative desires (though not always evil desires) of a person, where their Shadow, representing everything that they repress, is located, along with doppelgangers of other people based on their views of them &random minor Shadow minions. Picture related is the Palace of the leader of the conspiracy in 5, which takes the form of a ship to represent how he only cares about saving himself, and to some degree his supporters, & will seek power even if it makes the rest of the country "sink". Each Palace is also associated with one of the Seven Deadly Sins (and Vanity), his being Pride. Palace rulers don't have to be evil though, just distorted, one of the protagonists in 5 formed a Palace from her self-loathing over her mother's apparent suicide, & manages to get past it by refocus herself to avenging her mother, targeting the people who had her killed and made a fake suicide note to blame her with her Wrath. Each Palace has a Treasure at it's core, an embodiment of the ruler's distorted desires. In 5, when the Thieves send a "calling card", they temporarily force the Treasure into a solid form, which they can then steal, collapsing the Palace and forcing the ruler to realize just how distorted their desires were (the character I mentioned being her "own" treasure, since her Palace was a Pyramid-styled tomb), & make them confess their crimes.
Persona 4 has a similar concept in the TV World, where people thrown into it can form dungeons based on their hidden thoughts & desires.
Anyway, what are some good candidates for each Sin? Warden Wrath, ironically, could be Lust, given his obsession with Eda in "A Lying Witch and a Warden", & Belos would probably be Pride, but what of the others?