Sakuya Izayoi is a fictional character from the Touhou Project series, created by Team Shanghai Alice. She serves as the head maid of the Scarlet Devil Mansion, located in the alternate world of Gensokyo. Sakuya is known for her time manipulation abilities, allowing her to stop or slow down time at will, which she uses to perform her duties with exceptional precision. She is loyal to her mistress, Remilia Scarlet, and often engages in battles with the series' protagonists. Sakuya is recognized for her calm demeanor and mastery of knife-throwing techniques.