When a young boy becomes the chosen one, he must use a magical sword to defeat evil spirits and monsters that threaten his village. With the help of yokai, mythical creatures from Japanese folklore, he embarks on a thrilling adventure to save his town.
Kei Watanabe is a fifth grade elementary school student. He has inherited the hunter's blood to hunt yōkai. To save the world from being destroyed, Kei Watanabe challenges a war against the yōkai.