Itsuka Tenma no Kuro Usagi: Kokoro Utsuri no Toukoubi - School Attendance Day
Genres: Comedy, Romance, Supernatural, Ecchi
Type: OVA, Episodes: 1
Aired: Dec 5, 2011
Studio: Zexcs
Source: Light novel
Rating: PG-13 - Teens 13 or older
Synopsis:
Episode bundled with the ninth volume of the Itsuka Tenma no Kuro Usagi novel.

Includes Mirai's chibi-style dream, body-swapping and a crossover with Densetsu no Yuusha no Densetsu.