Eve Neuschwanstein is Blade's partner. She is bad at remembering other people's names. Even though she has the appearance of a young girl, she is proven to be a capable fighter. Her fragment is 'Doppelganger', an ability which allows her to shapeshift into anything (from a drill on her arm to other person's appearances). She is also shown to be able to shapeshift into a wall, which is inorganic. The weakness of this power is that she needs a lot of calories to use it. Therefore, she often drinks an energy drink named 'Super Gel Dero Doro Drink', which contains 5000 kilocalories.

Based on Mouser's Roy Sakazaki