Description
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an anime TV series created by Yasuhiro Imagawa (Giant Robo, G Gundam) and produced by A.C.G.T.,The TV series premiered January 10, 2002 on TV Tokyo and finished in run on June 27, 2002, totaling 25 episodes. A New Year's special episode was included in the seventh DVD volume (KIBA-745) released on October 2 of the same year. Due to production schedules, the manga adaptation, illustrated by Azusa Kunihiro, started serialization in Akita Shoten's Sh┼Źnen Champion on November 8, 2001, two months before the anime premiere. The manga ended on May 25, 2002 and collected in three volumes.After seeing a rainbow as a child and being mesmerized by its beauty, Nana's grandfather has been trying all his life to capture the beauty of a rainbow within a crystallized form. After years of failed attempts and crazy inventions, such as a VCR toaster and vacuum cleaning mouse catcher, he finally discovers a way to make such a crystallized rainbow. His plan would work by separating the light from a rainbow into its seven basic colors and then reforming it into seven colorized crystals. His experiment was working too and only needed a few seconds in the microwave to be complete and finally fulfill his dream. That is when Nana, who was searching for the microwave in an attempt to bake a chocolate cake for Yuichi, opened the door before the crystal had fully hardened and caused an accident.

The crystal glowed and split into the seven colors of the rainbow, hitting Nana as one color and coming out of her in seven separate colors of the rainbow, creating seven different Nanas. Aspect of Nana's personality suddenly exist its own separate physical form, there is a giggly Nana, a sleepy Nana, a crybaby Nana, a grumpy Nana, one who is a bit of a flirt, and an intellectual Nana, who all standing alongside the original Nana. However, they are all also the same Nana, and all share the same feelings for the boy Yuichi, which is clearly seen as their first thought is to finally make that chocolate.