Taking place some time after Utawarerumono, a travelling young girl named "Kuon" encounters a lazy, laid back but intelligent young man who was wandering in the winter snow with amnesia. After escaping from a slimy Tatari she decides to become his guardian, giving him the name "Haku" after the Utawarerumono and help him look for...

Eruruu discovers an unconscious masked man who reminded her of her late father. She takes him back to her home in the rural village of Yamayura to nurse him back to health. He himself has no memories of his past and is unsure why he has a mask he can't remove nor why the local residents have ears and tails. Soon he earns the respect of the...