「ヒビキの弟子になる」という京介の言葉。そして、吹奏楽部の合宿に必要ないと言われ、落ち込む明日夢。みどりは補欠の子を集めて自分達で合宿をすればいいと提案。一方、響鬼は新たに出現した魔化魍・ヨブコに大苦戦を強いられていた。音撃が通用しない！
Hibiki, Todoroki, and Ibuki encounter a powerful Makamou who is immune to all three of their Ongekis. They choose to retreat and come up with come measure to combat it.
Ibuki becomes worried about Akira as he as not seen here since she left with Shuki.
Asumu frets that his life is worthless after being kicked out of his high school's brass band club.
