Will is the fortuitous and hilarious crossover between Orpheus (you know, from mythology) and ABC's Galavant. Born the daughter of a noble house, she abandoned her land and titles to marry the love of her life and live as a wandering bard. However, just a few short years into their relationship, her girlfriend is kidnapped by a demon and Will follows her to the underworld to save her... only to discover that actually, the love of her life actually likes ruling in the underworld, so she'd rather stay there. Understandably, this breaks her.
Will works in fantasy settings, either during or after the whole abandoned by my girlfriend and trapped in the underworld thing. She's kind of an evil-lite character (spending so much time in Hell is rough on the alignment scale) and I think she benefits more from a corrupting plot than a salvation plot, and also... evil's more fun. Maybe this would be a good place to mention that uh... I like dark themes, but I like them to have some meat on them. I want razing villages to mean something, you know?
Okay, but now that I think about it, buddy cop situation with her and a really dedicated Paladin would be so much fun, too.