Plot: As Kanna pops by the Robotics Club and agrees to join, Kaito recalls what Mizuka told him about how Akiho's sister, Misaki, was allegedly friends with Airi. As Kaito once again visits Airi later that night to hear more details, including how Kimijima created her, he follows a strange noise to an underground room, where he finds an EGI device used to send noises to outer space