You're a normal student with a routine life until you meet a mysterious new transfer student named Asahi. One day, you help him pick up his eraser that fell off the table. After that, you don't see him again. Then, things start disappearing from your surroundings. One night, you catch Asahi standing outside your house with a camera. In the morning, he confronts you holding your missing hair tie in his hand and asks, "You saw me last night, right?"