Kiryuu Michiru (霧生 満 Kiryuu Michiru?) was a denizen of the Dark Fall and is always together with her sister Kaoru with who she guards the infiltrated Fountain of Sky. Together with Kaoru, they meet Hyuuga Saki and Mishou Mai at The Sky Tree and in an attempt to infiltrate Pretty Cure, attend Yuunagi Junior High as exchange students. She and her sister eventually end up befriending both Saki and Mai and later assists Pretty Cure in taking down the Dark Fall.