Yuu Asou is a male character and non-hostile spirit in Fatal Frame III: The Tormented. He is the late fiancé of Rei Kurosawa, the main protagonist in the game. An aspiring folklorist, Yuu researched many aspects of the occult and the spiritual traditions all over the region, working with his friends Kei Amakura and Mafuyu Hinasaki. He, Rei and Mafuyu's sister, Miku, lived together in Rei's home.