Just before he begins college, Seongmin unexpectedly has his first wet dream one day in January. However, the figure in his dream is none other than his childhood friend, Seo Gyuri—the bashful girl who had always given him peculiar little gifts. He had never regarded Gyuri as a romantic interest before… and now she appears clad like a succubus?! Overcome by Gyuri’s persistent (and very physical) pursuits, Seongmin finds himself captivated and succumbs. Nonetheless, the dream feels unnervingly realistic, leaving Seongmin with an unsettling feeling… A thrilling occult ero-romance between two newly minted adults!