Outcast Kingdom stars a cast of four main characters, but if I had to pick one, maybe it'd be Hilda, since she's the team's unofficial leader, and she has a prominent role in this first chapter.
What makes her unique?
For one, she's an artificially constructed person. Since she was never really 'born', she never really had a family.
Also, she has armor plates that attach directly to implants in her body, and her alchemical composition gives her heightened strength and constitution.
The problem is that although she's loyal to her friends and naturally social and friendly, she treats normal humans with prejudice, because of past conflicts between her kind and humans. I guess we all have our demons we must wrestle with.