*Devil Survivor Spoilers*
Nope. Devil Survivor is a deconstruction of what would happen if people could suddenly control monsters with otherworldly powers, as seen in so many video games. Hell, they even control the monsters with a video game system in Devil Survivor. Most of the characters are, likewise, supposed to be deconstructions of various video game and anime archetypes.
Midori is supposed to be a naive child who sees the whole thing like an anime happening in real life, and sees herself like some sort of Magical Girl Dolly who can fight for truth, justice, and love, not realizing just how grim the reality of the situation is. And she's supposed to realize things don't work like that in reality. Which she does! Except I guess they weren't sure how to write her once reality set in, so she didn't really seem to change all that much.
If you're looking for a well-intentioned extremist, Keisuke's your man. "I'll murder every criminal" is pretty much the textbook definition of that archetype.
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Ace Detective in Sir Chris' Police
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