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Nuriko (柳宿) is a character in the manga and anime series Fushigi Yūgi.
Nuriko first appears disguised as "Kourin" in Emperor Hotohori's harem (which Hotohori never goes to unless to welcome new maidens). "Kourin" was in fact Nuriko's younger sister who died at a young age; he began behaving and dressing like her to keep her memory alive.
Nuriko is the only consistently crossdressing, physically strong warrior in the series and is very infatuated with his fellow warrior, Hotohori. In addition to that, it is later revealed that he also loves Miaka Yuki (and according to creator Yuu Watase, Nuriko is bisexual), though the exact nature of this love is never revealed due to his death shortly after admitting his love for her. However, within Hotohori's character novel consists a letter written by Nuriko to Houki. It was written just before his death and in it he says he's fallen in love with someone special (Miaka). Nuriko is the first Suzaku-seishi to die in the story. He was killed during a fight with Seiryū-seishi Ashitare. Near the end of his life he dresses as a man so he can properly protect Miaka. Nuriko is often the second choice when it comes to 'Favorite Seishi', slightly behind Tasuki and closely followed by Chichiri.
More on Nuriko at http://en.wikipedia.org/wiki/Nuriko.