The first season consisted of thirteen episodes, along with 2 special episodes included with the "Blu-ray BOX" & a bonus-short prologue episode.
| # | Screenshot | Title | Air Date | Blu-ray Box |
|---|---|---|---|---|
| 01 | 
|
The Monster of the Abyss 『奈落の底の化け物』 (Naraku no Soko no Bakemono) |
July 8, 2019 | Blu-ray BOX ① |
| 02 | 
|
Pandora's Box 『パンドラの箱』 (Pandora no Hako) |
July 15, 2019 | |
| 03 | 
|
The Golden Vampire Princess 『黄金の吸血姫』 (Kogane no Kyūketsu Hime) |
July 22, 2019 | |
| 04 | 
|
Guardian of the Depths 『最奥のガーディアン』 (Saiō no Gādian) |
July 29, 2019 | |
| 05 | 
|
The Maverick's Lair 『反逆者の住処』 (Hangyakusha no Sumika) |
August 5, 2019 | |
| 05.5 | 
|
OMNIBUS: Great Orcus Labyrinth 『総集編：オルクス大迷宮』 (Sōshūhen: Orukusu Daimeikyū) |
August 12, 2019 | |
| 06 | 
|
Worthless Rabbit 『残念なウサギ』 (Zan'nen'na Usagi) |
August 19, 2019 | Blu-ray BOX ② |
| 07 | 
|
Great Reisen Labyrinth 『ライセン大迷宮』 (Raisen Dai Meikyū) |
August 26, 2019 | |
| 08 | 
|
Reunion with the Past 『過去との再会』 (Kakoto no Saikai) |
September 2, 2019 | |
| 09 | 
|
Dragon Slayer 『黒竜を穿つ者』 (Kokuryū o Ugatsumono) |
September 9, 2019 | |
| 10 | 
|
The Goddess' Sword 『女神の剣』 (Megami no Ken) |
September 16, 2019 | Blu-ray BOX ③ |
| 11 | 
|
The Monsters' Day Off 『化け物たちの休日』 (Bakemono-tachi no Kyūjitsu) |
September 23, 2019 | |
| 12 | 
|
A Looming Shadow 『忍び寄る影』 (Shinobiyoru Kage) |
September 30, 2019 | |
| 13 | 
|
The Best at Being the Worst 『無能の無双』 (Munou no Musou) |
October 7, 2019 |
" Omake "
| Special No. | Screenshot | Title | Release Date | Blu-ray Box |
|---|---|---|---|---|
| Prologue | 
|
Prologue 『プロローグ』 (Purorōgu) |
January 19, 2020 | |
| 01 | 
|
Yue's Diary 『ユエの日記帳』 (Yue no Nikki-chō) |
December 25, 2019 | Blu-ray BOX ② |
| 02 | 
|
Hot Love Springs Eternal 『なれそめ温泉』 (Naresome Onsen) |
February 26, 2020 | Blu-ray BOX ③ |