Having been severely injured protecting Indou, Yashiro takes command of his disciples, instructing them to work together. By complementing each other's weaknesses and utilizing their unique strengths, the three steadily defeat the Nephilim. However, one Nephilim attacks the battered Yashiro. Ido and Levi, who control the Nephilim, also appear, and the hero's battle reaches its climax!

Seeking information about the Half-Dragon, Yashiro and his disciples head to Hokkaido. As they continue their trek through the snowy mountains, they come across "Hero's Hot Springs," adorned with a dazzling neon sign. There, Yashiro encounters a mysterious man and is taken by surprise by his unexpected strength. Meanwhile, Lord Two-Handed Wedge makes contact with a collaborator of the Half-Dragon through his own channels. The conflict between the demon lords intensifies.