Iwatani Naofumi, a run-of-the-mill otaku, finds a book in the library that summons him to another world. He is tasked with joining the sword, spear, and bow as one of the Four Cardinal Heroes and fighting the Waves of Catastrophe as the Shield Hero. Excited by the prospect of a grand adventure, Naofumi sets off with his party. However, merely a few days later, he is betrayed and loses all his money, dignity, and respect. Unable to trust anyone anymore, he employs a slave named Raphtalia and takes on the Waves and the world. But will he really find a way to overturn this desperate situation?
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Shield Hero | 2019-01-02 | 60 min |
| Season 1 | Episode 2 | The Slave Girl | 2019-01-16 | 30 min |
| Season 1 | Episode 3 | Wave of Catastrophe | 2019-01-23 | 30 min |
| Season 1 | Episode 4 | Lullaby at Dawn | 2019-01-30 | 30 min |
| Season 1 | Episode 5 | Filo | 2019-02-06 | 30 min |
| Season 1 | Episode 6 | A New Comrade | 2019-02-13 | 30 min |
| Season 1 | Episode 7 | The Savior of the Heavenly Fowl | 2019-02-20 | 30 min |
| Season 1 | Episode 8 | Curse Shield | 2019-02-27 | 30 min |
| Season 1 | Episode 9 | Melty | 2019-03-06 | 30 min |
| Season 1 | Episode 10 | In the Midst of Turmoil | 2019-03-13 | 30 min |
| Season 1 | Episode 11 | Catastrophe Returns | 2019-03-20 | 30 min |
| Season 1 | Episode 12 | The Raven Invader | 2019-03-27 | 30 min |
| Season 1 | Episode 13 | The Devil of the Shield | 2019-04-03 | 30 min |
| Season 1 | Episode 14 | Everlasting Memory | 2019-04-10 | 30 min |
| Season 1 | Episode 15 | Raphtalia | 2019-04-17 | 30 min |
| Season 1 | Episode 16 | Queen of the Filolials | 2019-04-24 | 30 min |
| Season 1 | Episode 17 | A Promise Made | 2019-05-01 | 30 min |
| Season 1 | Episode 18 | A Conspiracy Linked | 2019-05-08 | 30 min |
| Season 1 | Episode 19 | The Four Cardinal Heroes | 2019-05-15 | 30 min |
| Season 1 | Episode 20 | Battle of Good and Evil | 2019-05-22 | 30 min |
| Season 1 | Episode 21 | Naofumi's Triumphant Return | 2019-05-29 | 30 min |
| Season 1 | Episode 22 | Four Heroes Council | 2019-06-05 | 30 min |
| Season 1 | Episode 23 | Cal Mira Archipelago | 2019-06-12 | 30 min |
| Season 1 | Episode 24 | Guardians of Another World | 2019-06-19 | 30 min |
| Season 1 | Episode 25 | The Rising of the Shield Hero | 2019-06-26 | 30 min |
| Season 2 | Episode 1 | A New Roar | 2022-04-06 | 30 min |
| Season 2 | Episode 2 | Footprints of the Spirit Tortoise | 2022-04-13 | 30 min |
| Season 2 | Episode 3 | Shaking Land | 2022-04-20 | 30 min |
| Season 2 | Episode 4 | Ruins in the Fog | 2022-04-27 | 30 min |
| Season 2 | Episode 5 | Ost Hourai | 2022-05-04 | 30 min |
| Season 2 | Episode 6 | Racing to Catch Up | 2022-05-11 | 30 min |
| Season 2 | Episode 7 | Infinite Labyrinth | 2022-05-18 | 30 min |
| Season 2 | Episode 8 | A Parting in the Snow | 2022-05-25 | 30 min |
| Season 2 | Episode 9 | Humming Fairy | 2022-06-01 | 30 min |
| Season 2 | Episode 10 | Katana Hero | 2022-06-08 | 30 min |
| Season 2 | Episode 11 | Kizuna | 2022-06-15 | 30 min |
| Season 2 | Episode 12 | Reason to Fight | 2022-06-22 | 30 min |
| Season 2 | Episode 13 | Flowers Offered in Recollection | 2022-06-29 | 30 min |
| Season 3 | Episode 1 | Episode 1 | 2023-11-01 | 30 min |
| Art | Ryo Hirata | Prop Designer |
| Art | mikitail | Prop Designer |
| Costume & Make-Up | Kahoru Fujiki | Costume Designer |
| Art | Masaru Sato | Art Direction |
| Art | Naomi Ogura | Art Designer |
| Visual Effects | Hiroshi Go | 3D Director |
| Visual Effects | Aiko Matsuyama | Color Designer |
| Directing | Masato Jimbo | Series Director |
| Production | Rita Wang | Executive Producer |
| Production | Sho Tanaka | Executive Producer |
| Production | Yoshiki Usa | Executive Producer |
| Art | Chiho Wada | Assistant Art Director |
| Production | Kousuke Arai | Producer |
| Production | Masakatsu Umeda | Producer |
| Editing | Kazumi Taniguchi | Online Editor |
| Sound | Chiai Fujikawa | Theme Song Performance |
| Sound | Koji Shimizu | Sound Mixer |
| Sound | Kyohei Akezuma | Foley Artist |
| Visual Effects | Ryan White | Opening/Ending Animation |
| Visual Effects | Ryoko Amisaki | Opening/Ending Animation |
| Visual Effects | Takashi Hashimoto | Opening/Ending Animation |
| Visual Effects | Takayuki Onoda | Opening/Ending Animation |
| Visual Effects | Haruto Takahashi | Opening/Ending Animation |
| Visual Effects | Mitsuhime Nitta | Opening/Ending Animation |
| Visual Effects | Hiroo Nagano | Opening/Ending Animation |
| Visual Effects | Kohada | Opening/Ending Animation |
| Visual Effects | Lin Kewei | Opening/Ending Animation |
| Visual Effects | Yuri Ichinose | Opening/Ending Animation |
| Visual Effects | Noriyasu Murata | Opening/Ending Animation |
| Visual Effects | Hiroto Nishizawa | Opening/Ending Animation |
| Visual Effects | Hiroshi Yoneda | Opening/Ending Animation |
| Visual Effects | Takanori Yamamoto | Opening/Ending Animation |
| Visual Effects | Mika Tomiya | Opening/Ending Animation |
| Visual Effects | Saeko Fujita | Opening/Ending Animation |
| Visual Effects | Miharu Nagano | Opening/Ending Animation |
| Visual Effects | Sennin Yatsunami | Opening/Ending Animation |
| Visual Effects | FireB | Opening/Ending Animation |
| Visual Effects | Kohei Tokuoka | Opening/Ending Animation |
| Visual Effects | Masahiro Suwa | Opening/Ending Animation |
| Visual Effects | Takashi Watanabe | Opening/Ending Animation |
| Editing | Hitomi Sudo | Editor |
| Production | Haruki Satomi | Executive Producer |
| Production | Makoto Hojo | Executive Producer |
| Production | Fumihiko Shinozaki | Executive Producer |
| Production | Satoshi Kobayashi | Executive Producer |
| Production | Asuka Yamazaki | Executive Producer |
| Production | Shun'ichi Okabe | Executive Producer |
| Production | Masahide Tsuji | Executive Producer |
| Visual Effects | Masahiro Suwa | Character Designer |
| Camera | Yukiyo Kajiwara | Director of Photography |
| Sound | Fumiyuki Goh | Sound Director |
| Sound | Shota Yaso | Sound Effects |
| Sound | Hiromitsu Iijima | Music Producer |
| Sound | Shunichi Uemura | Music Producer |
| Art | Emi Akao | Assistant Director of Photography |
| Editing | Chika Ishii | Online Editor |
| Production | Nobuhiko Kurosu | Producer |
| Production | Kenichi Tokumura | Producer |
| Production | Hiroyasu Taniguchi | Producer |
| Production | Toyokazu Nakahigashi | Producer |
| Production | Yasuhiro Nakajima | Producer |
| Production | Naoki Kishida | Producer |
| Production | Sho Nakata | Producer |
| Production | Takashi Tachizaki | Producer |
| Writing | Keigo Koyanagi | Series Composition |
| Sound | Kevin Penkin | Original Music Composer |
| Writing | Aneko Yusagi | Novel |
