Diffused Existence Protection
There are sometimes statements such as "savants don't know why demon X behaves in Y manner." In a world where a summoner could just summon the demon and demand to be told why, there must be some reason that this is so. I posit that the Primordials had defenses in place to protect against the problems that arose when they shared their consciousness with multiple unified beings. Essentially, imagine that when you ask a demon a question that the Yozi finds threatening, this potentially counts as a social attack. The imprisoned Primordial activates a perfect social defense, which quietly keeps the demon from being revealing the answer in any manner whatsoever.
Diffused Existence Protection
Minimum Essence: 8, Cost: 5 motes or 1 Willpower, Type: Reflexive
Use of this Charm allows the Yozi to grant one of his component souls, or a demon of the First Circle who is directly descended from or created by one of his component souls, a perfect defense against any social attack which would cause the demon to behave contrary to the Yozi's design. Note that this design is typically already evident in some form within the makeup of the being in question. Malfeas means for Sondok to be the warden of gateways, or at least his Ligier soul does, and so this Charm could defend against social attacks which might make her behave otherwise. Supplementally, the Charm might also be used to protect against social attacks designed to investigate the reasons that Sondok is thus designed.