Dearche Lord

MaterialD is a Material part of the system Unbreakable Dark materialized as a clone of Hayate Yagami during the Dark Fragment Incident. Her name is first introduced in The Battle of Aces in English MaterialD and in Japanese Lord Ruler of Darkness without specific rubykanas. The D in her name is believed to stand for Darkness which is associated with Hayate and the Book of Darkness. In The Gears of Destiny it is revealed her rubied name is Load Dearche which may be shortened as Dearche. It is most likely a misspelling of Lord Dearche. She is properly spelled as Lord Dearche in Magical Girl Lyrical Nanoha INNOCENT video game. Her device is Yersinia Kreuz. Source: Nanoha Wiki