Having just slain a horror, Raiga and Mayuri happen upon Crow who reveals that he is heading to the mountains to purify his blade in the Moonlight Ritual. He asks Raiga and Mayuri to follow him, telling them of his mentor Taishi on the way. But once at the mountain where the ritual takes place, the Makai Knights and Mayuri hear yelling and run to find Crow's fellow Makai Knights after they have been brutally attacked. One of the surviving Makai Knights, Gento, reveals that they were waiting for Crow when, by accident, Barg awakened and has run off. After Crow and Zaruba explain that Barg is a Horror-eating beast used in the Moonlight Ritual, Raiga aids Crow and Gento to find Barg before it dies and the Horrors in its stomach escape. However, as it eludes its pursuers, Barg kills the other Makai Knight Shizuru while spiriting Mayuri off. When she awakes just before nightfall, Mayuri finds Barg beginning to die from exposure to the human world and she sympathizes with the monster. By then, Raiga and the other Makai Knights arrive with a revenge-driven Gento willing to destroy Mayuri to kill Barg. This prompts Raiga to fight Gento as Barg sprouts wings to fly off with Mayuri. Crow equips his armor to pursue, engaging Barg in an aerial dog fight while saving Mayuri. Seeing the dying Barg still intent to fight, Mayuri decides to consciously activate her power to absorb Barg at the cost of her own life. Luckily, Raiga arrives in time to stop Mayuri as he engages Barg with Crow and Gento creating a barrier to hold the monster so Raiga can kill it. By sunrise, Mayuri has built a grave for Barg as Gento pays respects to his fallen comrades before making his apologies to Raiga. When Raiga turns his attention to Mayuri, she explains that she is no different from Barg while Crow tells her that she is more human than she thinks because of her compassion. The Makai Knight explains to her that he only killed Barg because it was at the point of no return. Later, Mayuri asks Raiga t
