Faith

From DQWiki

Faith is an Elven E&E played by Andrew Withy.

She is a polite, unassuming, little murderous psychopath.

Sometimes she forgets that she isn't the niece to the most powerful man in the known world, now that she's moved from Southern Terranova. Sometimes she just pretends to forget.

She is universally misunderstood. This often buys her enough time to hurt more people.