Yokai are the monsters, demons, and spirits of Japanese folklore, such as the shape-changing kitsune, the obakeneko demon cats, and the evil oni ogres. Usagi faces all these and more when a desperate woman begs for his help in finding her kidnapped daughter. Tracing the abducted girl deep into the forest, Usagi finds it haunted by creatures of Japanese legend and discovers that they are amassing for a great raid on the countryside! Fortunately, Usagi is joined by Sasuke the Demon Queller, who is also fighting to prevent the invasion, but things aren't always as they seem, especially when dealing with the supernatural!