Remilia Scarlet is the owner and head of the Scarlet Devil Mansion, the mistress of Sakuya Izayoi and Hong Meiling, and the older sister (and guardian) of Flandre Scarlet. Though her appearance (and often behavior) is childlike, and seems nonthreatening, She has fearsome magical powers and a reputation to match, being known throughout Gensokyo as the dangerous "Scarlet Devil." Like all vampires she is photosensitive and weak when exposed to sunlight, so she typically remains inside her mansion. Touhou