This is Asphodel, head acolyte of the plagalatry, the head, the right hand of Aratrice themselves as indicated by his earrings, the four tears of Aratrice, this head priest is called a Pandyma, he was appointed this role for his diplomacy, and his close relationship with Aratrice. Asphodel is admired by Aratrice for his patience and kind nature, and his ability to do good, originally born into a cult of the god of hate and vile acts, Dysabene, a normal village on the surface, but they'd kidnap others for painful rituals and sacrifices to their god, Asphodel defied this, he would let prisoners run away free, he'd let other members who were loyal take the blame and weakened the cult of hatred from within, their numbers dwindled as they tore each other apart, but unfortunately, they eventually found out Asphodel's scheming one late night.

They would make an end to kill Asphodel and almost succeeded, Asphodel won, if not gravely injured, as Asphodel limped out into the woods, Dysabene cursed him with growths, which were to grow and grow until Asphodel became a new region of fleshland, in eternal torment, But as Asphodel slumped down, the pain in his body tearing through him he called out, for anything, and he was taken over by a fever so hot, like a divine glow, he had visions beyond his minds ability to explain them in spoken word, but he understood them perfectly, he felt Aratrice embrace him.

The growths in his body transformed into new body parts, his form shifted to a rodent's, a grotesque and messy process, and the whole time images flashed in his eyes, they felt hot as the sun as they scorched his brain, he was reborn as Asphodel, and from then on, his old name meant nothing to him.
His new body parts solidify his connection to Aratrice, and provides unique boons, Aratrice can speak through the mouth on Asphodel's torso, he can keep things in this maw as well, his new eye receives visions, he can see and hear beyond the limits of typical mortals.

The garb he wears, is typical among worshippers who call themselves priests, a scarf, and pants secured around the waist with a large cloth, this came about because more zealous followers often feel euphoria for their new forms, and wish to flaunt their new body, so the revealing garb became a trend