Once upon a time it was a very nice Ryugu castle. It was a fascinating place where the finest princesses gathered and when they visited, they would definitely be watered down. A girl named Orihime came to work part-time there ... A Japanese old story that is too erotic, this time the main characters are Otohime, Kaguyahime and Orihime! The oldest part of Ryugu Castle, filled with the scent of big-breasted princes. Brave Hikoboshi is coming!