An anime television adaptation of C³ was announced in the April 2011 issue of ASCII Media Works's Dengeki AnimeStyle pamphlet. The series was produced by StarChild and SILVER LINK under the direction of Shin Ōnuma with Michiko Yokote as script supervisor. The opening theme song is "Endless Story" performed by Yukari Tamura and the ending theme song is "Hana" (雪華, "Snow Flower") performed by Eri Kitamura.
List of Episodes[]
| No. | Title | Original Air Date |
|---|---|---|
| 1 | Night of the Cube 布団に移るものを知らない Futon ni Utsuru Mono o Shiranai |
October 1, 2011 |
| 2 | When Contents of the Cube Are Exposed どこに、なにを、なにか Karera no Ondo no Niritsuhaihan |
October 8, 2011 |
| 3 | Cold Curse, Warm Curse 彼らの温度の二律背反 Doko ni, Nani o, Nani ka |
October 15, 2011 |