Sakuya  

, さくや

Sakuya is a mechanical doll who owns and operates Tsukumi Pavillion, an old hot springs resort on the east side of the forest. Despite appearing to be a beautiful pale woman with long purple braided hair, she is actually made up of gears and springs. She carries advanced weaponry such as heads-up displays for tracking, rockets, and missiles within her body. Sakuya can sometimes lose limbs or head. Although friendly, she considers anyone who tries to help with her work as an enemy. She was created 130 years ago and smuggled aboard the ship Airantou as luggage. She has no idea about her creators or purpose.