High School D×D - Season 0 Episode 16
Unaired 13th canon episode of season 3. Issei goes to the Underworld to help and train Riser Phenex who has lost all confidence in himself by the request of Ravel Phenex.
First Air Date : 2012-01-06
Last Air date : 2018-07-03
Runtime : 57 minutes
Genre : Animation, Action & Adventure, Comedy, Sci-Fi & Fantasy
Cast : Yuki Kaji, Yoko Hikasa, Azumi Asakura, Shizuka Itoh, Ayana Taketatsu, Fumihiko Tachiki
Crew : Makoto Uno (Character Designer), Kenji Konuta (Series Composition), Yoshifumi Sueda (Series Director), Eriko Aoki (Producer), Ichiei Ishibumi (Novel), Miyama-Zero (Original Series Design)
Quality : 
Subtitles :
- Season 0 : Episode 12011-12-19
- Season 0 : Episode 22012-03-21
- Season 0 : Episode 32012-04-25
- Season 0 : Episode 42012-05-23
- Season 0 : Episode 52012-06-27
- Season 0 : Episode 62012-07-25
- Season 0 : Episode 72012-08-29
- Season 0 : Episode 82012-09-06
- Season 0 : Episode 92013-05-31
- Season 0 : Episode 102013-06-25
- Season 0 : Episode 112015-03-10
- Season 0 : Episode 122015-07-24
- Season 0 : Episode 132015-08-26
- Season 0 : Episode 142015-10-28
- Season 0 : Episode 152015-11-25
- Season 0 : Episode 162015-12-09
- Season 0 : Episode 172015-12-25
- Season 0 : Episode 182016-01-27
