On the precipice of a cataclysmic drought, the Star Readers of the Shin Yogo Empire must devise a plan to avoid widespread famine. It is written in ancient myths that the first emperor, along with eight warriors, slew a water demon to avoid a great drought and save the land that was to become Shin Yogo. If a water demon was to appear once more, its death could bring salvation. However, the water demon manifests itself within the body of the emperor's son, Prince Chagum—by the emperor's order, Chagum is to be sacrificed to save the empire. Meanwhile, a mysterious spear-wielding mercenary named Balsa arrives in Shin Yogo on business. After saving Chagum from a thinly veiled assassination attempt, she is tasked by Chagum's mother to protect him from the emperor and his hunters. Bound by a sacred vow she once made, Balsa accepts. Seirei no Moribito follows Balsa as she embarks on her journey to protect Chagum, exploring the beauty of life, nature, family, and the bonds that form between strangers.

Mini specials bundled with each Blu-ray/DVD volume of Seireitsukai no Blade Dance. Each special is tied to the new 32-page short story that original light novel author Shimizu Yuu wrote for the limited first pressing of every Blu-ray/DVD volume.

Based on the manga by Okazaki Takeshi begun in 1990. After a family tragedy, Kagura is left with only his beloved friend Asami for consolation. Meanwhile, there is a war beginning in the spiritual world. Beings known as Elementalors call upon power from spirits to maintain harmony in the world by balancing individual forces of nature. Lord Shiki, a water Elementalor, kidnaps Asami in order to use special powers she posesses to retrieve his daughter, who has been imprisioned for nearly destroying the Earth. Kagura discovers that he is also an Elementalor—a very powerful one. He must join forces with other Elementalors to save Asami and prevent Lord Shiki from causing a great imbalance by releasing his daughter. (Source: ANN)

Based on Ekaterina Kurae's chapter 16 from the manga, and episode 10.5 of the anime.