A miniskirt Santa appears before Sakuta, calling herself Touko Kirishima. Shes been handing out presentsAdolescence Syndrome. And one of the lucky winners is Sakutas classmate from middle school, Ikumi Akagi. According to urban legend, posts tagged #dreaming are filled with prophetic visions and Ikumi is using those posts to play hero. Sakuta sees the results of this firsthand when he spots her saving someone. But then a poltergeist attacks and apparently this is all the fault of his past somehow?!