Guardian of the Sacred Spirit is a beautifully crafted anime series that aired in 2007 on NHK. The show, created by Production I.G., is an adaptation of the first novel in the Seirei no Moribito series written by Nahoko Uehashi. The series was directed by Kenji Kamiyama, who is well known for his excellent direction in the Ghost in the Shell: Stand Alone Complex series.
The story follows Balsa, a highly skilled warrior and bodyguard, who lives in a world that is steeped in mythology and legend. She takes on a mission to protect Chagum, the second prince of the New Yogo Empire. The boy is believed to carry a curse that will bring about the end of the world, and Balsa must keep him safe until the time of the prophecy passes. However, as her journey with Chagum progresses, she begins to unravel a conspiracy involving the imperial court and dark forces that seek to use Chagum for their own gain.
The show is set in a fictional world that is reminiscent of ancient Japan. However, the world is populated by various indigenous tribes that have their own unique cultures and customs. The world-building in the show is superb, and the viewer is treated to a fascinating blend of historical facts and mythology. The plot is well-executed and surprisingly mature for a show that is produced for a younger audience. The themes touched on in the show include politics, love, loyalty, and sacrifice.
Balsa, the main character, is incredibly well-written and a joy to watch. She is an unusual protagonist for an anime series - a middle-aged woman who is not overtly sexualized, and whose strength lies in her intelligence, agility, and physical strength. Her character design is realistic, and her movements feel grounded in reality. The voice actor for Balsa, Mabuki Ando, does an excellent job of portraying the character