Itsuka Tenma No Kuro Usagi: Kokoro Utsuri No Toukoubi - School Attendance Day

Itsuka Tenma No Kuro Usagi Ova, Itsuka Tenma No Kuro Usagi Episode 13, Itsuka Tenma No Kuro-Usagi Ova, A Dark Rabbit Has Seven Lives Ova, Itsuten, Itsu-Ten