This is Nana, a vampire merchant. She's very friendly, and stands at seven feet tall. She pursues the selling of artifacts as a hobby, and gives discounts for the blood of tasty-looking customers (completely safe, she won't kill you)!

She's joined on her journeys by Vapula, a demon familiar given to her by her sisters to prevent her good-natured generosity from letting her undersell valuable artifacts, doing so by barking out higher prices.

And lastly, there's Pierre, her tamed mimic that ate a bag of holding, and carries all of her stock.