C³: Rinkan Gakkou Confusion!
English name: C³ - CubexCursedxCurious - Outdoor School Confusion
Genres: Action, Comedy, Supernatural, Ecchi
Type: Special, Episodes: 1
Aired: Apr 25, 2012
Studio: SILVER LINK.
Source: Light novel
Rating: PG-13 - Teens 13 or older
Synopsis:
Unaired episode included with the fifth volume of the Blu-ray. The gang goes on a school trip.