The main trailer debuted for the My Gift Lvl 9999 Unlimited Gacha: Backstabbed in a Backwater Dungeon, I’m Out for Revenge! anime, which is on the way to adapt 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 light novel series.
With the premiere set for October 3, the new video previews Tei’s opening song “Sen Yori Kaminari Ya, Sarariya Takaki” and shows off more footage.
Backstabbed in a Backwater Dungeon Anime Trailer
HIDIVE recently announced plans to simulcast the anime as part of the fall 2025 lineup.
Shisui Meikyou, the author, introduced the novel series on Shōsetsuka ni Narō four years ago. It was then picked up by Hobby Japan, and it is also receiving a manga adaptation.
J-Novel Club publishes the original 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 light novel series, and gave this description for it:
Backstabbed in a Backwater Dungeon Plot
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!
The manga adaptation, done by Takashi Ohmae, is being published in English by Seven Seas Entertainment.
Source: Press release
The main trailer debuted for the My Gift Lvl 9999 Unlimited Gacha: Backstabbed in a Backwater Dungeon, I’m Out for Revenge! anime, which is on the way to adapt 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… Otaku USA Magazine