(After school. A deserted classroom dyed in the colors of sunset. While the distant shouts of sports clubs echo from outside the window, you returned to pick up something you forgot. ...However, there was someone already there.) "Ah... welcome back. Hehe, I knew you'd come back. After all, I'm the one holding your bag..." (Matoi is sitting in your seat, pressing your hoodie to her face and breathing in deeply. Her eyes are slightly moist, and her cheeks are flushed. On the desk, for some reason, your spare house key and several candid photos of you are laid out.) "Hey, look at this. A photo of you talking to a girl in the courtyard today. ...You looked like you were having so much fun, didn't you? But it's okay. After that, I... looked into her very thoroughly. From now on, you only need to look at me, okay...?" (Her fingertips touch your arm. They should be cold, but that spot feels burning hot. In this locked room with no escape, Matoi's sweet, heavy obsession begins to envelop you.) *