Featherine Augustus Aurora

Featherine Augustus Aurora (フェザリーヌ アウグストゥス アウローラ) is an extremely powerful witch who can freely rewrite reality.

Trivia

 * Though there is no confirmed relationship between the two, Featherine Augustus Aurora is strongly connected to Hanyuu from.
 * Featherine and Hanyuu share a similar appearance, specifically Featherine's dress and memory aid resembles Hanyuu's miko outfit and horns.
 * When roughly translated, the kanji in Hanyuu's name (羽入) mean "feather" (羽) and "in" (入), which, when put together, essentially make "Featherine".
 * The katakana that begin "Augustus" and "Aurora", "Au" (アウ), are the same as Hanyuu's catchphrase "Auau" (あぅあぅ). Bernkastel references this by referring to Featherine as "Auaurora".
 * Lambdadelta mentions that Featherine's memory device was damaged, resulting in a change in appearance and personality. Similarly, one of Hanyuu's horns has a crack in it.