Ophelia is our lovely, cheerfull, happy-go-lucky bunny girl that gets stuck inside a sentient armor! The problem being: the armor is actually the ancestral defeated Overlord! (Oh, she's also a huge closet pervert)

 If I had to pick a similar voice, I'd say we're looking for something similar to Tracer from Overwatch, just less energetic (and not necessarily brittish) 

How would you play her? 

Ophi's initial voice bits include 10 "moods", some with 2 different lines. Her first draft amounts to around 50 words. Please notice Ophelia is the one character that is DEFINITELY going to be used for NSFW, so keep that in mind!