The heroes are shocked by Ishinoo's death. The badges worn by Ido and Levi, depicting a "broken dragon's face," belong to a mysterious organization called "Half-Dragon," which aims to instigate conflict between demon lords. Seeking clues about the mastermind behind Ishinoo's murder, Yashiro heads to the Ministry of Education, Culture, Sports, Science and Technology's Demon Lord Disaster Countermeasures Branch Office and learns that a large bounty has been placed on the son of a certain politician. That son is a subordinate of Lord "Two-Handed Wedge," whom they fought a few months ago...

While confronting the black-clad men under Lord Storm's command, Yashiro teaches his three disciples the basics of swordsmanship. Jogamine, Indou, and Sera each attempt to subdue the men, but Jogamine, who is determined not to kill her enemies, struggles. As they fight desperately, Lord Storm's commander appears before them. Yashiro tries to extract information about the Half-Dragon, but a monstrous humanoid suddenly intervenes, throwing the situation into utter chaos.