Althair Valfredo is the youngest son of the King of Nier Valfredo. They are kitsune race nobles, nine-tailed fox demons. There was chaos in the castle because the dog demons suddenly attacked the castle of the Valfredo Clan. The dog demons are led by the Holy Dog or Inugami. Prince Althair also lost at the hands of Inugami named Kentaro. Luckily the Inugami didn't finish off Prince Althair completely. To be precise, they didn't realize that Althair Valfredo's power was still there. No one was aware except for Verrold. Verrold was a loyal servant of Prince Althair. Verrold then collected Althair's soul particle and manifested it into the Spirit Stone, also known as Holistoon. With the Spirit Stone, Althair will later be able to rise again. Unfortunately, Althair's body was already destroyed. So, Verrold as Althair's loyal bodyguard is tasked with finding a container for his master. Then, they meet humans named Takumi Akazawa dan his girlfriend. Can Verrold find a new container for Althair? And can Althair be resurrected?