Towa, Setsuna and Moroha are hired by Tamano, a beautiful young woman who was rescued by Riku to slay Homura, an evil mountain god who had abducted her from her grandparents and filled with sheer jealousy, started to kill all men who eve glanced at her. During their confrontation, Homura recognizes Towa and Setsuna, revealing that he was the one responsible for the forest fire that separated them one decade ago, as he was ordered to dispose of the half-demon twins under the command of the Yökai Zero. He attempts to cover for his failure by killing them when Riku arrives with Tamano by her request...