The memory of that terrible night is fading away: not a trace is left, and a brand new desk is placed in the biology room, as if nothing had happened. On her way home from school, George takes Saya to the grave of the Miyagusuku family, on a hill overlooking the sea colored by the sunset. George talks about his past and his meeting with Saya. Back at Omoro, David reveals to Saya that she is the only living being who can defeat the chiropterans, as the creatures like the one that attacked her at school are called. Saya is shocked, but a new menace is just approaching, its eyes shining red...

On a ship leaving Okinawa, Riku hears about the tragic event that took place, and so he confines himself in his cabin. Kai tries to comfort Riku, but he doesn't even respond. Saya feels that she is solely responsible for her family's misfortune. Seeing Saya, Hagi takes out the sword and tells her that the key to take back her past lies at the end of the continuous battle. Meanwhile, Okamura, a reporter for the Ryukyu Daily who was investigating the random killing and came to focus on Yanbaru, finds an empty case of Bordeaux wine in the dump yard of an industrial waste disposal company...