Summer break is coming up fast for Hyodo Issei, but all his plans are put on hold when he finds out he is to accompany Rias for her visit back home to the underworld! A new adventure is about to begin and all the while Koneko is not acting herself.
| Title | Summer Break! Off to the Underworld! |
|---|---|
| Genres | Animation Action & Adventure Comedy Sci-Fi & Fantasy |
| Release Date | 2015-04-04 |
| Episode Runtime | 00 Hours 28 Minutes |
| Season Number | 3 |
| Episode Number | 1 |
| Production Companies | TNK, Passione |
