Was originally leaning towards something that boils down to the "they're right, I'm a demon" idea, but since that would potentially also involve shapeshifting, decided to go for the summoner one instead! Essentially someone who believed all that talk about monsters hiding under your bed/in your closet as a child, but turned them her imaginary friends who she can now summon to fight. Unless that teeters too close to supernatural territory, since the supernatural are subconscious beings of primal fears, and the belief that something lurks under your bed definitely started out as a fear for her too. But I guess that's more of a superficial similarity, since her summons are still created from her vitas and logic alone.