Time stranger Kyoko

"Kyoko Suomi is the princess of Earth in the 30th century. She lives among the commoners, unwilling to reveal her true identity and ascend the throne. The king will allow Kyoko to live as she pleases, if she can revive her twin sister Ui, who has been trapped in time since birth. After discovering that Sakataki is the Crystal Stranger, Kyoko continues her search for the other telepaths who can awaken her sister. Kyoko suspects that her longtime friend Karen might be one of telepaths, but Karen is unwilling to help"--P. [3] of cover.