Time Stranger Kyoko (時空異邦人KYOKO Taimu Sutorenjā Kyōko) is a manga series written and illustrated by Arina Tanemura. Originally serialized in Ribon from the September 2000 issue to the September 2001 issue, the individual chapters were collected and published in three tankōbon volumes in Japan by Shueisha. Viz Media licensed the series for an English-language version in North America, releasing the first volume in July 2008; the third and final volume was released in January 2009.
Kyoko Suomi is the princess of Earth in the 30th century. Kyoko goes to school 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.