To find out who among his friends was replaced by Natsumi, Shido starts having dates with each of them. After meeting Tohka, Yoshino, Hiroto and Yuzuru, Shido decides that none of them could be Natsumi in disguise. However at midnight, Natsumi uses her power to make Yuzuru disappear. Kaguya is distraught over her disappearance but they lie to her that Yuzuru is away undergoing some test. Shido realizes he has to move fast in order to expose Natsumi before more disappearances occur.