As hostilities escalate between humans and demons, Flio resolves to stay neutral. But Gholl, the Dark One himself, deposed by his brother Yuigarde in a coup, has other plans! He shows up on Flio’s doorstep with his right hand Uliminas in tow. With so much world-shaking power gathered under one roof, there’s only one thing to do: Road trip! The Kunosaki Hot Spring Resort may be just what Flio’s motley crew of knights and demons needs. Is a little R&R enough to bring humanity and demonkind together? Or will Yuigarde and his minions pour cold water on Flio’s vacation plans?