Back in elementary school, Ryota Tanikame experienced something terrifying during the mysterious "Lid Festival" in a rural village he visited on a trip. Years later, now a college student, he meets a strange young man named Saku Nakamoto in class. From that moment on, strange and unsettling events begin to unfold around him... A chilling tale of the supernatural that follows the lives of college boys haunted by eerie memories and unexplainable phenomena.