Inuyasha’s father defeated a powerful Chinese moth yōkai named “Hyōga” two centuries ago, but a Shikon Jewel fragment has freed his son, “Menōmaru”, who seeks revenge for his father’s destruction and to free the tremendously infinite power and strength of his father sealed away with him. Menōmaru and his female minions, “Ruri” and “Hari”, begin battling with Inuyasha. Miroku and Sango have their hands full dealing with the duo, Ruri having copied Miroku’s Wind Tunnel and Hari having stolen and possessed Sango’s faithful companion, Kirara. Menōmaru curses Kagome so she turns against Inuyasha.
When Menōmaru is finally able to access the tremendous demonic power of his predecessors, sealed away by Inuyasha’s father, he becomes the new Hyōga and exponentially much, stronger and more powerful as each generation gains the power of all of the preceding generations. Hyōga soon begins to change the essence of time and space as he absorbs the souls of countless people in order to fully merge himself with his family’s demonic energy that causes the mind-control that he put on Kagome to awaken and an injured Kaede and search for Inuyasha. As he’s crossing a bridge, Inuyasha thinks he sees Kikyo but instead it’s Kagome who is wearing Kikyo’s clothes. Inuyasha greets her on the bridge while Kagome is trying to tell him to run, but unfortunately cannot be heard. Then walks over to Inuyasha and puts her head on his shoulder. He embraces her after which Kagome says “Inuyasha… get away.”, warning him of her attack. He looks in amazement but is then stabbed by magical “claws” that come from Kagome’s hands; afterwards, he realizes what Menōmaru has done. He then is chased by the controlled Kagome to the tree that he was sealed to. Regaining control of herself for a moment, Kagome tells Inuyasha to run.