The mechanic and driver. Taciturn. She spends most of her time repairing the Takemikazuchi. 15 years old. In episode 11, we know that Helvetian Headquaters used her engineering abilities to rebuild a biological weapon facility (which was used in war), because of that, Roman soldiers gave her the nickname "Die Hexe aus Helvetia" (Helvetian Witch). The chemical weapon developed at the facility was called the "Invisible Reaper".