Junko Iwao is a Japanese voice actress and singer. Her most notable role is in Cardcaptor Sakura, providing the voice to Sakura's best friend and cousin, Tomoyo Daidōji. She also voiced lead character Mima Kirigoe in Perfect Blue, Ceres in Ceres, Celestial Legend, and Kikyo in Hunter x Hunter. In video games, she voiced Pai Chan in Virtua Fighter, Carole Pepper in Honkai Impact 3rd, Mint in Tales of Phantasia and Serika in To Heart.

Ceres, Celestial Legend, known in Japan as The Mystery of Ceres , is a Japanese manga series written and illustrated by Yuu Watase. It was originally serialized in Shōgakukan's magazine Shōjo Comic from May 1996 to March 2000, with its chapters collected in 14 tankōbon volumes. The manga was licensed for English release in North America by Viz Media. The series focuses on Aya Mikage, who learns on her sixteenth birthday that she is the reincarnation of an ancient and supremely powerful celestial maiden or angel (tennyo) named Ceres, and her twin brother Aki the reincarnation of Ceres' former husband, Mikagi, the progenitor of the Mikage family, who had stolen Ceres' robe. Ceres' spirit begins manifesting in Aya, and to save her brother she must find Ceres' long-lost celestial robe, while avoiding being killed or captured by family members who want to use Ceres's supreme celestial abilities for their own personal gain.