Backstabbed in a Backwater Dungeon Anime Reveals More Cast, Staff, October 3 Debut

Bandai Namco Filmworks revealed the key visual, additional cast, staff, and the October 3 premiere for the television anime of Shisui Meikyou and tef‘s Backstabbed in a Backwater Dungeon: My Trusted Companions Tried to Kill Me, But Thanks to the Gift of an Unlimited Gacha I Got LVL 9999 Friends and Am Out For Revenge on My Former Party Members (Shinjiteita Nakama-tachi ni Dungeon Okuchi de Korosarekaketa ga Gift “Mugen Gacha” de Level 9999 no Nakama-tachi o Te ni Irete Moto Party Member to Sekai ni Fukushuu & “Zamaa!” Shimasu!) light novel series, on Friday.

gacha — Image courtesy of Bandai Namco Filmworks

The newly announced cast are:

Hana Hishikawa as Nazuna

gacha3 — Image courtesy of Bandai Namco Filmworks

Shiori Izawa as Aoyuki

gacha4 — Image courtesy of Bandai Namco Filmworks

Ayumi Mano as Ellie

gacha5 — Image courtesy of Bandai Namco Filmworks

Yūko Natsuyoshi as Nemumu

gacha6 — Image courtesy of Bandai Namco Filmworks

Katsuya Miyamoto as Gold

gacha7 — Image courtesy of Bandai Namco Filmworks

The newly announced staff includes:

The anime will premiere in October 3 on the Tokyo MX, MBS, and BS11 channels. The anime will also hold an advance screening of its first three episodes on September 7 at Shinjuku Piccadilly Cinema.

stab — Image courtesy of Bandai Namco Filmworks

The anime stars:

Katsushi Sakurabi (Flying Witch, The Betrayal Knows My Name) is directing the anime at J.C.STAFF, Hiroshi Ohnogi (Fullmetal Alchemist: Brotherhood, Kekkaishi) is in charge of series scripts, and Yukie Suzuki (Tsukimichi -Moonlit Fantasy-) is designing the characters. Yoshikazu Iwanami (Ajin, Fate/Zero, JoJo’s Bizarre Adventure) is the sound director, and Ryō Takahashi (High Card, Wind Breaker) is composing the music.

J-Novel Club licensed the novels, and it describes the story:

When Light is kicked out of the Concord of the Tribes, his former comrades instantly turn on him. Light escapes this diabolical act of betrayal by the skin of his teeth…only to find himself in the deepest part of the Abyss, the most dangerous dungeon in the realm! To avoid being eaten by carnivorous monsters, he uses the Unlimited Gacha, his sole magical skill. But where it previously only produced junk items, this time Mei—a gorgeous Level 9999 fighter in a maid outfit—springs forth!

Fast forward three years and Light has carved out his own kingdom in this backwater dungeon, summoning more
beautiful Level 9999 warriors who swear absolute fealty to him. Now a powerful Level 9999 Overlord himself, Light plans to ascend to the surface and take revenge on his betrayers one by one!

Shisui began serializing the story on Shōsetsuka ni Narō in April 2020. Hobby Japan published the first print volume with illustrations by tef in May 2021, and the 12th volume shipped on April 18.

Takashi Ohmae launched a manga adaptation in Kodansha‘s Magazine Pocket website in May 2021. Kodansha will publish the manga’s 17th compiled book volume on August 7. Seven Seas licensed the manga.

Source: Press release

Disclosure: Bandai Namco Filmworks Inc. (Sunrise) is a non-controlling, minority shareholder in Anime News Network Inc.

Disclosure: Kadokawa World Entertainment (KWE), a wholly owned subsidiary of Kadokawa Corporation, is the majority owner of Anime News Network, LLC. Yen Press, BookWalker Global, and J-Novel Club are subsidiaries of KWE.