The leader of Extrinsic, Elysion's black ops squad for locating and eliminating Irregular Nikkes before they cause (further) harm to the Ark and its citizens. To that end, Maiden has the ability to hypnotize Nikkes using code imbedded into her words, referred to as "kotodama". This ability is kept in check by the mask Maiden wears, which can only be removed with express permission from Ingrid. While Maiden herself doesn't mind keeping the mask on, it does lead to inconvenience.