A press
release listed that Shisui Meikyou and Tef 's
light novels , " 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
and the World ( Shinjiteita Nakama-tachi ni Dungeon Okuchi de Korosarekaketa ga
Gift "Mugen Gacha" de Level 9999 no Nakama-tachi wo Te ni Irete Moto
Party Member to Sekai ni Fukushuu & "Zamaa!" Shimasu! )
", are getting an anime adaptation. The statement listed the production
details and voice cast, as well as a scheduled premiere date of sometime in
the Fall 2025 (October–December) period in Japan.
Shisui
Meikyou began
publishing the story through the independent service Shousetsuka ni
Narou in April 2020, while Hobby Japan has been
publishing it in print with illustrations by Tef since May
2021. A manga adaptation by Takashi Ohmae has been published
through Kodansha 's Magazine Pocket service
since May 2021.
Synopsis
of Backstabbed in a Backwater Dungeon
When
Light is expelled from the Concord of Tribes, his former comrades instantly
turn against him. Light narrowly escapes this diabolical act of betrayal, only
to find himself in the deepest part of the Abyss, the most dangerous dungeon in
the realm. To avoid being devoured by carnivorous monsters, he uses Unlimited
Gacha, his only magical ability.
But
where before he only produced useless items, this time Mei appears, a beautiful
Level 9999 warrior dressed as a maid. Fast-forwarding three years, Light has
built his own kingdom in this remote dungeon, summoning more beautiful Level
9999 warriors who swear absolute loyalty to him. Now a powerful Level 9999
Overlord, Light plans to ascend to the surface and exact revenge on his
traitors one by one.