Inyouchuu Shoku - Season 1

Based on the game by Tinker Bell. Demon hunters Mikoto, Sui, and Takeru are dispatched to a mysterious island. The location is the site of repeated disappearances, with rumors pointing to dark yoma as the cause. Their initial arrival carries an almost vacation-like atmosphere, but this feeling is short-lived. The team soon becomes aware of a pervasive and sinister presence.