Time Stranger Kyoko 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 English-language publication in North America, publishing the first volume in July 2008; the third and final volume was published in January 2009.
An eleven-minute-long original video animation (OVA) based on the manga series, Time Stranger Kyoko: Leave it to Chocola, was released in Japan in 2001 at Shueisha's Ribon Festival. Produced by Transarts and directed by Masatsugu Arakawa, the OVA centers on the character Chocola.
Plot
In the 30th Century, the planet is now united under one country called Earth. Princess Kyoko Suomi is protected by the last remaining members of the Dragon clan: the princes Hizuki and his younger brother Sakataki. Kyoko has lived the life of a commoner, attending public school under the quiet protection of her two guardians, while avoiding being seen in public as the princess. As her 16th birthday approaches, the time when she will inherit the crown, her subjects are growing restless at her refusal to be seen. She decides to accept her fate and her duties as the princess, but her father offers her the chance to return to the life she prefers if she can awaken her twin sister, Ui. Ui has been in a coma-like state since she was born and is said to be "trapped in time". If she awakens, she would inherit the crown, and Kyoko would be free. Wanting to meet and speak with the sister she has never known, Kyoko agrees to undertake the quest.