In`youchuu Shoku: Ryoushokutou Taimaroku Special

Based on the adult game by Tinker Bell Studios One day at the end of summer vacation, the Black Cat monster extermination agency gets a phone call: "Help, there are mysterious disappearances of vacationers on our paradise island. Please come!" Hunters Mikoto, Sui, and Takeru happily take up the assignment, for it will allow them to get out of the boring office and onto a gorgeous island beach! Upon arriving on the island, they stay at the customer's old man's house and head straight to the beach. Time flies and they really enjoy swimming in the sea, but as they look around the area and destroy the little bad things, they begin to sense the presence of something incredibly dark and very, very twisted...