Mainz is a very diligent and serious lady who always took her job and duty very seriously. She is a shipgirl with white hair and red eyes. She has long white hair and red eyes. She wears a white outfit with a coat, a miniskirt and thigh highs that hug her curvy body.

“Light cruiser, Mainz. There were plans for me to succeed the Admiral Hipper class, but due to circumstances, I've incarnated in this form. You get the rest without me telling you, right?”