Kimi no Kakera
is a Japanese manga series written and illustrated by Shin Takahashi. It was serialized in Shogakukan's Weekly Shōnen Sunday from August 2002 to March 2004; however, Takahashi stopped its serialization and the series continued directly via volumes. A total of nine volumes were published from January 2003 to July 2010. A two-chapter story, titled Spica, was published in Weekly Shōnen Sunday in 2010 and 2013.
Story
Ikoro is a thirteen-year-old girl who is the princess of the "Upper World", a world where snow is always falling and even princesses like her are forced to wake up at 4 a.m. and go to bed at midnight, learning and working the rest of the day. The Upper World is a "country of night", surrounded on four sides by towering walls and with perpetual below-freezing temperatures.Ikoro lives with her blind young brother Mataku and her servants Shā and the monkey-like Kuro. Her parents have left them apparently seeking out the legend of a "sun".
One day, Ikoro's dinner with her brother is interrupted by a strange boy crashing through the ceiling. Ikoro finds that the boy is wearing manacles and has white hair. The boy has lost his memory and is dubbed "Shiro". Ikoro and Shiro are both, which means that she cannot feel joy and he cannot feel pain. The two of them go towards the "Lower World" deciding that they will find a sun.
Characters
;Ikoro;Shiro
;Mataku
Publication
Written and illustrated by Shin Takahashi, Kimi no Kakera started in Shogakukan's Weekly Shōnen Sunday on August 21, 2002. It went on hiatus after its 29th chapter, released in the April 2, 2003, issue. It resumed publication in the magazine for ten chapters from December 24, 2003, to March 3, 2004. The series then continued publication directly via volumes. The series' first six volumes were published by Shogakukan from January 18, 2003, to August 10, 2007. The seventh volume was released, after a two-year and two-month hiatus, on October 16, 2009. The final eighth and ninth volumes were released on January 18 and July 16, 2010.A short story, titled Spica: The Twin Stars of "Kimi no Kakera, was published in Weekly Shōnen Sunday on July 21, 2010. Another story, titled Spica: A Little Afterschool Star, was published in the same magazine on July 3, 2013. These chapters were published by Shogakukan in a volume, which included another story, on August 16, 2013.