As a templar, she is a brave and dependable aide that survived situations of great peril.
Sofia had beautiful blonde hair.
Her mind snapped, after enduring Diablo's demon lord's ambition. She shed tears while trying desperately to run away.
She was almost turned into a fallen by Diablo, but he stopped halfway through, thinking of Rimuru's displeasure.
She has great knowledge in Demonology, as a countermeasure against the heretics. Because It's best to know your enemy. Not only that, but she also studied summoned demons and demon summoning. Because of that, she is very familiar with Demonology.