So, we've seen quite a lot of
@Aleph's Keris and her soul pantheon, but Keris is not the default for an Infernal using the soul pantheon rules I've devised. She's effectively devoted vast amounts of time into working on her pantheon, and spends hours daily meditating to interact with her souls, keeping them friendly and well-inclined to her. Amusingly, since what Keris is doing is mechanically meditation, the time she puts into playing with her souls is actually a form of personal therapy little different than the time that an Immaculate monk spends meditating to control his desires and focus his mind. What Keris does by focussing on her desires and her wants and her drives and getting them to play nicely together and not pull each other's hair is effectively time spent getting her mind and her desires in order.
Most Infernals are not going to spend so much time focussing on their own psychological stability, and so their soul pantheons are going to be rather less cooperative and useful. They're also going to be more "classically" demonic - which is to say, they're not going to all be little (sometimes) adorable (usually) bratty children and are instead going to resemble normal Exalted demons more.
As an example, here's what Sasi's nascent soul pantheon looks like. Which says rather more about her than she'd like others to know.
The Blasphemer in Gold, the Seat of Sin
Second Soul of Lady Sasimana
The po soul of Nemone Sasimana has supped upon the succor of the Yozis, and has bloated in ways the souls of men were not meant to. Now, when the Blasphemer in Gold manifests within her soul-world it is a creature out of the night-terrors of Immaculate children. Pale skinned and grey-haired, like its greater self, it drapes itself in tattered golden robes and wears a demonic mask. Upon the forehead of the living mask is painted a sun, which is sometimes yellow and sometimes green. Its hands and feet have long, claw-like fingernails that are often caked with blood, and serve to contrast its lush female form.
The Seat of Sin is a cowardly creature that flees from strength but viciously attacks weakness. It is not clever, but it has a certain base cunning that makes it dangerous for a thing that otherwise resembles a beast. The other souls fear it, for it will attack them seemingly at random and lose interest only when they beg for mercy. At other times the Blasphemer in Gold will simply stalk the soul-world, seeking out its favoured vices - and to that end, the other souls leave offerings to it which seem to sate its envy and greed.
Mu Nenra, the Guide to Lady Sasimana
Fourth Soul of Lady Sasimana
Once an agata champion whose jousting and philosophy alike won him glory and repute in the fighting arenas of Malfeas, Mu Nenra was taken by the Priests of Cecelyne after he slew the centipede behemoth Valak before an audience of ten thousand. Such skill drew the eyes of the Unquestionable and so he was made a coadjutor. The Yozi essence has twisted him, and though he remains a beautiful wasp, he has shrunk to the size of a large dog and is now formed of milk-white stone.
Mu Nenra is a poorly suited coadjutor for Lady Sasimana. Though his philosophy is occasionally of interest to her, the vainglorious champion made a poor impression on a manipulative socialite - and worse, she does not respect him as a 'mere' first circle demon. He is sometimes of use for she appreciates someone to bounce ideas off of, but he has little influence over her actions. Moreover, with the genesis of her other souls his influence has dwindled even further and now he fears what may happen, trapped within a tiny world with five other souls - and her monstrous po.
Kalaska, the Princess of Law
Fifth Soul of Lady Sasimana
Within the darkness of Sasimana's soul there is a cave-shrine made of blue glass and engraved with endless laws. There dwells Kalaska, the Princess of Law, who has the seeming of a young girl of perhaps eight or nine years of age. She looks much like her greater self, though her eyes are a bright blue and under silver robes she wears ill-fitting armour made from the same glass as her shrine. When Kalaska speaks, her word becomes law. As a result, she says little save when she is scared, though she is not quiet and hums and sings meaningless songs. When she wishes to communicate without passing judgement, she creates blue glass tablets that hold the words she cannot say.
For all her imperious nature, fear holds Kalaska closely. Only within her place of law is she safe - if she leaves it, her armour cracks and splinters. Unexpected changes inflict pain on her, and sometimes the cracks spread from her armour to her flesh. She hates to accept the influence of others, and will cite her endless made-up laws and rules whenever she perceives a threat. Around her, criminals and oathbreakers find that they suffer the symptoms of hay fever, for the miniscule fragments of glass that sliver from her pale hair seek out those who show no respect for their own words. She has made herself a little desert fox-akuma from the sand that coats the floor of her cave, and she loves the creature dearly. It advances ahead of her and trails in her wake, for it has several bodies - though one can usually be found in her arms. She is somewhat neglected by her greater self and bullied by the other souls, especially La and the po who will threaten her beloved pet to get her to comply.
Seresa, the Mother of Shadows
Sixth Soul of Lady Sasimana
Though the true form of Seresa is an obviously female shadow-figure, she looks as she wishes. Her favoured form is a curvaceous woman in her early thirties, with dusky features and long hair the deep blue-black of the sky after sunset. She is frequently pregnant with The Things That Dwell In Shadows, though such pregnancies last but a single night. Her growing brood swarms around her, playing the stolen reflections of musical instruments and accompanying her in her gentle songs. Her touch leaves an oily residue and around her fires burn black, casting darkness rather than illumination.
Seresa is a mother figure and a seductress in equal amounts. Among the Mother of Shadows' many indulgences are compassion and love, and she is the kindest of Sasimana's souls - though sometimes she is too lost in decadence to make time for others. Within her quarters wine runs freely and narcotic smoke boils and churns. She is always prepared to console anyone who seeks her out, though her consolations often involve drowning the mind in drugs and pleasures than resolving its issues.
Marenolo, the Pivot of Understanding
Seventh Soul of Lady Sasimana
A male figure made from luminous colourless crystal from whose shoulders a hundred hands of light sprout, Marenolo is a scholar and a gentleman. His vast and cool intellect devours the warmth from his surroundings, and so water freezes and identical snowflakes fall from the sky around him. The Pivot of Understanding is himself blind, but that means nothing to him for with his countless hands he feels and examines the world around him, and so knows it intimately. His cave is where Sasimana stores her notebooks and own work on sorcery, and he is her archivist and scribe. Despite his blindness he produces elaborately illustrated work, though his concept of beauty more relates to the geometric patterns of the ink than the landscapes of Creation.
Marenolo's curiosity knows no bounds. Sasimana has already made the private decision that he will never be allowed to roam free within Malfeas, for he would no doubt swiftly be thrown into the sky by Orabilis. The restrictions on the Green Sun Princes leave him surly and rebellious, and he whispers to his greater self, tempting her to indulge her own curiosity in things better left untouched.
Moneha, the Eagle and the Spider
Eight Soul of Lady Sasimana
Moneha has two bodies, and both are Moneha at once. One is a woman with the head of an eagle, while the other is a spider the size of a cat with a woman's head. The spider is fair-featured and beautiful in a Realm way, with scarlet hair and sharp teeth. She offers deals, information, and other such aids. The eagle comes for those who break the terms the spider dictates, and those who fall under her power are swallowed whole. Oaths and promises are Moneha's business, though she considers herself above such deals and always makes sure to leave her a way to back out of any arrangement. When she is nearby, spiders and birds make common cause and the arachnids weave their webs around nests to keep them safe from insects.
The Eagle and the Spider respects nothing that she cannot own; not her greater self, nor the Unquestionables, nor even the Yozis. She cannot offer her aid freely and her tongues burn red-hot if she would try. When Sasimana would deal with her, she must come with bribes and payment - and this she does reliably. Hence, despite her lack of respect Moneha does have a certain fondness for her greater self and bargains more kindly than she would with another. Still, Moneha would ensnare the world if she had the means and Sasimana is always cautious around her, for they know each other as mother and daughter.
La, the Apostate Dragon
Ninth Soul of Lady Sasimana
Bald-headed, orange-robed and whippet-thin, La could almost be an Immaculate priest. Then the onlooker looks into his slitted eyes and sees the texts praising the Yozis tattooed across his skin and hears his squirming words which call men to cast down the gods and realise the nature of this apostate. He is as yet immature and cannot assume his full draconic form, but what men assume are his robes are instead his wings and he hides his claws beneath gloves. La reshapes the world with his words, twisting it in countless small ways. Men become cliches of themselves, and his blood spawns malformed mockeries. When he preaches, the text crawls across the pages in nearby books, and clothes reweave themselves to fashions more pleasing to the Yozis. His very presence is a blasphemy to Heaven, and gods find his touch burns like acid.
Within his shrine-cave, La works on revising the Immaculate Texts. He believes that the truth is concealed within them, an unknowing prophecy buried deep by the Sidereals who wrote them, and that in truth their tales of the past of Creation - ruled by demon-worshipping Anathema - are instead tales of the world to come. He sees a glorious future ahead, and presses Sasimana to make it a reality. One day she will be an Anathematic demon-queen, vizier of the Yozis, ruling Creation in their name. His forked tongue spills words about her revenge that will be complete when the faith of the Realm is turned to the Yozis and the Dragonblooded kneel before her.