Summary:Saya Otonashi lives peacefully with her adoptive family in Okinawa. The man that she proudly calls dad has adopted both her, her younger brother Riku and her troublesome older brother Kai. In the past year the four of them, once strangers, have formed a close loving family, but Saya wonders why she does not have any memories older than a year. Everything changes with the appearance of a monster called a Chiropteran. At school one night, a teacher is murdered before her eyes and Saya is attacked by a murderous creature. A mysterious young man carrying a cello appears and saves her, but he hands her a strange sword and tells her to fight. Why does her dad know so much about these monsters? And who is this cello player named Haji, someone who is now following Saya around - insisting on serving her?

• Episode 1-50
• Play Songs