Ryoutaro Nogami, a 14 year old boy from the future, arrived in 2007 with his four adoptive brothers, IMAGINs Momotaros, Urataros, Kintaros, and Ryuutaros with one purpose, to help a team of girls known as the Pretty Cures. However, they have another secret that no other may know, they are Kamen riders, users of time and space to fight and protect. Deeper and deeper as it goes, more secrets and mysteries of Ryoutaro and others will be revealed. Just what will these two groups discover? Meanwhile, in the shadows, someone is plotting something terrible.........