1화: 폭풍우 치는 밤, 리우스케의 집에 신비로운 방문자가 찾아온다.
2018년 7월 7일 방영
Thunder rumbles on a stormy night. At a certain house where Ryousuke, a high school boy is currently home alone, the phone rings just moments after the power goes out. Then a flash of lightning displays the shape of a person outside the window... (Source: Crunchyroll)