The mother of Erin, a Touda doctor of the Village of Ake. She is originally a woman of the Mist People, but left her original heritage when she married Asson, the son of the chief of Ake Village. However, Asson passed away early, and left his wife and unborn child to live in the village. Despite her being of the Mist people, Soyon was a gifted beastenarian and was given special permission to care for the village&#039;s Touda. She decides to train her daughter Erin to be a Touda vet without teaching her the Mist People&#039;s forbidden techniques.      ~!Soyon is executed when the Kiba Touda died in the ponds. She appears many times in Erin&#039;s memories, especially in memories of teaching Erin of animal breeding.!~

In the land of Ryoza, the neighboring provinces of Shin-Ou and Tai-Kou have been at peace. Queen Shinou is the ruler of Ryoza and her greatest general, Grand Duke Taikou, defends the kingdom with his army of powerful war-lizards known as the "Touda." Although the two regions have enjoyed a long-standing alliance, mounting tensions threaten to spark a fierce civil war. 
 
Within Ake, a village in Tai-Kou tasked with raising the Grand Duke's army, lives Erin, a bright girl who spends her days watching the work of her mother Soyon, the village's head Touda doctor. But while under Soyon's care, a disastrous incident befalls the Grand Duke's strongest Touda, and the peace that Erin and her mother had been enjoying vanishes as Soyon is punished severely. In a desperate attempt to save her mother, Erin ends up falling in a river and is swept towards Shin-Ou. 
 
Unable to return home, Erin must learn to lead a new life with completely different people, all while hunting for the truth of both beasts and humanity itself, with tensions between the two regions constantly escalating. 
 
(Source: MAL Rewrite)

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