Kimi no Kakera(きみのカケラ) is a manga by Shin Takahashi that is focused on a thirteen-year-old girl by the name of Icoro. She 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 by four sides of towering walls. This is a country of ice, where the temperature is always below freezing. This is a country of winter, where the snow is always piling up. In the 8th edition it was announced that the 9th edition would be the finale.