Following their arrival on the mysterious island, the demon hunters find themselves captivated by its picturesque landscapes and peaceful atmosphere. Mikoto, Sui, and Takeru begin their probe into the recurring disappearances, sensing an undercurrent of evil amid the idyllic setting. As night falls, strange phenomena emerge, revealing the presence of dark yoma and heightening the danger surrounding their mission. The team must stay vigilant as the island's secrets start to unfold.