Brought together by a mysterious song, a grad student and an engineer lead the fight against an unimaginable force that may spell doom for the world.
Seasons
1- 1"Terzetto" / "A Distant Road Home" ("Haruka Naru Ieji")360p
- 2Midsummer Devil Festival/'Manatsu Oni Matsuri'360p
- 3Nobae's Terror/ Nobae no Kyôfu360p
- 4The Future Not Yet Seen/ Mada Minu Mirai wa360p
- 5Hayaki Koto Kaze no360p
- 6Riron naki sûji360p
- 7Jikan no Gimonfu360p
- 8Maboroshi no Sugata360p
- 9Taore yuku hito no360p
- 10Rikigaku no Genri360p
- 11Rifujin na Gakufu360p
- 12Tatakai no owari360p
- 13Hajimari no futari360p