oni's shadow: immortals blood (Dark Annals)

As the war ended in Izumo and Riku was the Emperor of the Fox, his son Sam gets the throne by his unholy ally and was being controlled by Chiyou-a god who wants to free The Four Perils for power and knowledge to kill the gods. But in the god realm Yueliang Shui, Di Jun and his wives with the other gods fled into Izumo's god realm and allied with the Izumo gods. Before that, many years ago, Aoi was kidnapped at six years of age due to his ability to transform into an oni and was experimented on by Sam. As Aoi flees the palace, his parents and his very close friend Anya thought he was dead, but Aoi found the veterans of the war of Izumo, and they helped him go back to his parents. "...But as this happens, Chiyou releases The Four Perils and is betrayed and killed by them. In the wake of this chaos, a dangerous new threat emerges, determined to conquer the world with the power of the Shavarn-suns."