After Inuyasha, Kagome, and their companions joined forces to defeat Naraku, the Shikon Jewel, which had empowered demons, vanished as well. But several years later, four souls came into being. They were spirits without physical forms, capable of bringing rebirth to all things in the world. At the same time, a new evil power called the Dark Emperor rose to prominence. Han Xiaobing and Long Ying crossed paths with Inuyasha and his companions as they set out to destroy this force. A new adventure is about to begin...