A long, long time ago, the ever young, everlasting island of Houraijima was protected by the spiritual forces that dwelled there and had the power to escape the flow of time. Once upon a time, it was a flourishing, eternal paradise where monsters and humans lived together in peace. However, monsters from the outside world set their sights on these forces and assaulted the idyllic island leaving it in ruins. And now, the past is catching up with the present world that Inuyasha and Kagome live in.