Just before starting college, Seongmin suddenly experiences his first wet dream one January day. But the person in his dream… is none other than his childhood friend, Gyuri—the shy girl who kept giving him weird little gifts. He had never seen Seo Gyuri as the opposite sex before… and now she's appearing dressed like a succubus?! Overwhelmed by Gyuri’s relentless (and very physical) advances, Seongmin finds himself entranced and gives in. But the dream feels strangely vivid, leaving Seongmin with an eerie sense of unease… A suspenseful occult ero-romance between two freshly minted adults!