Sister of the Devil

The Stage EX Boss of [i]Embodiment of Scarlet Devil[/i], from the [i]Touhou[/i] series.

Has the power to destroy absolutely anything, combined with a somewhat unstable and childlike personality. Is therefore kept in in the Scarlet Manor's basement under lock and key as a precaution against such possible scenarios as Flandre deciding to erase the sun in a fit of annoyance.