One of the antagonists of [i][[Mahou Shoujo Lyrical Nanoha A's Portable: The Battle of Aces]][/i]. Material-D, also known as King Ruler over Darkness ([i]闇統べる王 Yamisuberu Ō[/i]) and Lord Dearche ([i]ロード・ディアーチェ Rōdo Diāche[/i]) is a "[[dark persona|dark copy]]" of [[Yagami Hayate]]. She wields [[Yersiniakreuz]], a copy of Hayate's [[Schwertkreuz]], and the [[Tome of the Purple Sky]], a copy of Hayate's [[Tome of the Night Sky]].

In [i][[Mahou Shoujo Lyrical Nanoha INNOCENT]][/i], she is known as Dearche Kings Claudia and her resemblance to Hayate is merely coincidental.
ロード・ディアーチェ ディアーチェ・K・クローディア