Malleus (ルサルカ・シュヴェーゲリン Rusaruka Shuvēgerin) She's an early member of Deutsches Ahnenerbe, Nazi Germany's institute of archaeological and occult researches. She's a genuine witch who had stepped into the realm of sorcery even before she joins the LDO as its 8th member. Despite her youthful appearance, it shelters one of the most ancient souls to have sworn loyalty to the Obsidian Round Table.

Despite being crafty and cunning at her very core, she is seen as playful and flirtatious on the outside, making her a very dangerous individual to associate with. She also has a fondness for torture and is known to be 'extremely' moody. Though essentially not a fighter, her cruelty rivals even Wilhelm's. ~ Wikipedia