She's the one behind Secret Society holoX, though these days she's operating under some pretty serious limitations. Originally she had massive power and intelligence, but most of that's locked away now—sealed, for reasons she doesn't entirely remember. She's aware enough to know her shackles are holding her back, but the specifics are fuzzy.
A crow keeps her company, and it's been with her for a long time.
Content compiled by AnimeList.moe from publicly available sources.
