Shoko is a student at Ryuusei Private Academy Middle School. Her dear sister, Kyoko, had went to study abroad five years ago and hasn’t heard from her since. One day, an unknown entity suddenly attacks Shoko. The ones who attacked her had been the Dryads, underlings of the evil goddess, Eris, who was once sealed by Goddess Athena. When Shoko and Saori Kido awaiting the Galaxian Wars meet, the gears of destiny begin to turn!
I, Equuleus Kyoko, have just returned.
أنا، إكليوس كيوكو قد عدت للتوّ
Ich, Equuleus Kyoko, bin zurück.
Kyoko de Equuleus, presente.
Kyoko de Equuleus, presente.
Je suis Kyoko du Petit Cheval,
de retour ici.
Io, Kyoko dell'Equuleus, 
ho appena fatto ritorno.
Kyoko de Equuleus está de volta.
Я, Кёко Малого Коня,
только что вернулась.