Sakuya Izayoi (十六夜 咲夜) is a character from the long-running Touhou Project series of 'Shoot 'Em Up' games. Sakuya is the head maid of the Scarlet Devil Mansion, working underneath of Remilia Scarlet, the vampire who owns the estate.
Despite being the only human who lives and works at the Scarlet Devil Mansion, she is fully capable of holding her own against the supernatural phenomenon that she frequently finds herself involved in. Sakuya has the ability to control space-time, which she uses to supplement her impressive ability with silver throwing knives.
Sakuya remains a mysterious character in the series. Outside of confirmation that Sakuya Izayoi is not her real name, or the fact that she is not from the games' general setting of Gensokyo, not much is known about her. It's rumoured that she was a vampire hunter who was defeated by the Scarlet sisters, which is how she came to work for them as their maid.
Sakuya has remained a staple of the series after her debut in the game The Embodiment of Scarlet Devil (東方紅魔郷) where she served as a boss character. She was a playable character in the next game, Perfect Cherry Blossom (東方妖々夢). Since then, she has gone on to make appearances in 10 other games as well as other media for the franchise such as official manga.
Sakuya quickly became my favorite character of the Touhou Franchise. Despite her high and mighty appearance and status, she has a sharp wit and somewhat childish personality that I think is really cute. I love maid characters in general, and one so unique and capable quickly stood out to me.