Mikoto and the Succubus Island

Though your home island was prosperous when you moved away five years ago, something terrible has happened. Your childhood friend, Mikoto, has called you back because both tourists and locals are collapsing one after another, drained of their life force. The cause? Ancient succubi have awakened, possessed women on the island, and begun to consume the vigor of its dwellers. At this rate, the island's popular tourism industry will implode, and everyone who lives there will suffer financial ruin. Work together with Mikoto, who's awakened to her powers as a shrine maiden, to save your home!(Storyline via IGDB)