I want to take you home and make you my guinea pig, and learn all the secrets of your power and make it mine!!
~ Yumemi Okazaki

Yumemi Okazaki is a character from the old-age series of Touhou Project videogames, debuting as the final opponent and an unlockable character in Phantasmagoria of Dim. Dream.


She is a former university professor searching for the mysterious power of magic so that she can study it and bring her findings back to the scientific community. When she arrives in Gensokyo her ship is mistaken for ruins by the inhabitants. She attempts to kidnap the heroine to use her as a research subject, but is ultimately defeated and sent home empty-handed. Yumemi is actually so unfamiliar with both the magical and religious matters of Gensokyo that she calls Reimu's power magic. Even when Reimu insists over and over that it's not magic but rather "divine power", Yumemi stubbornly declares it to be magic.


  • (Touhou 3) Red eyes and dark red hair, with a matching dark red cape, vest, cloth shoulders, and skirt. She also has a white shirt and bright red bow tie.
  • (Alternate outfit) Same as above except her hair is blond and her eyes are yellow, her dress and cape is black with purple trimmings on her dress and the cloths on her shoulders as well. Her cape has a red trim, and her bow is red/purple.


  • Chiyuri Kitashirakawa (Assistant)
  • Ruukoto (Former servant)


  • "Yumemi" means "beautiful dream". "Okazaki" is a common Japanese surname meaning "mountain". It may also be a reference to the Japanese biologist Reiji Okazaki.
  • Yumemi appears on the cover of Phantasmagoria of Dim.Dream along with all the other characters in that game.
  • Yumemi is one of the few PC-98 characters who has a full in-game portrait. (The portrait appears when she is casting a special attack.)
  • Yumemi's alternate outfit in character selection has a red bow tie, but when she is casting a special attack, her bow tie is purple instead.
  • Yumemi is the only final boss of any of the games that is a pure human. Mima, Ghost; Byakuren, Magician; Miko, Saint; Kanako, Goddess; and so on.