The main promotional video for the upcoming anime series My Gift Lvl 9999 Unlimited Gacha: Backstabbed in a Backwater Dungeon, I’m Out for Revenge! has unveiled that musical artist Tei will perform the opening theme song. The highly anticipated fantasy revenge series is set to premiere on October 3, 2025, and will be exclusively simulcast on HIDIVE in numerous territories.
Tei to Deliver Opening Theme for Fall 2025 Anime
The revelation of Tei as the opening theme song artist adds another layer of excitement for fans awaiting the anime adaptation. While the title of the song itself has not yet been explicitly announced, Tei’s involvement marks a significant musical contribution to the series. The main promotional video, released around August 19-21, provided a glimpse into the anime’s action-packed world and its accompanying soundtrack.
October Premiere and Global Streaming Exclusivity on HIDIVE
My Gift Lvl 9999 Unlimited Gacha: Backstabbed in a Backwater Dungeon, I’m Out for Revenge! is slated to begin its broadcast on October 3, 2025, appearing on channels such as Tokyo MX, MBS, and BS11 in Japan. For international viewers, AMC Networks’ HIDIVE has secured exclusive simulcast rights, bringing the series to audiences in the U.S., Canada, the U.K., Ireland, Australia, and New Zealand. An advance screening of the first three episodes is also scheduled for September 7 at Shinjuku Piccadilly Cinema.
Delving into the World of ‘Unlimited Gacha’
The anime, often referred to by its shortened English title My Gift Lvl 9999 Unlimited Gacha, adapts the popular light novel series penned by Shisui Meikyo with character concepts by tef. The narrative follows Light, a human boy who, after being betrayed and left for dead by his party in the treacherous dungeon known as “Abyss,” discovers the true potential of his unique “Unlimited Gacha” gift. This power allows him to summon powerful Level 9999 allies, including the formidable maid Mei, enabling him to build his own empire from the depths of despair and seek revenge against those who wronged him.
The main cast bringing these characters to life includes:
- Nina Tamaki as Light
- Ikumi Hasegawa as Mei
- Hana Hishikawa as Nazuna
- Shiori Izawa as Aoyuki
- Ayumi Mano as Ellie
- Yūko Natsuyoshi as Nemumu
- Katsuya Miyamoto as Gold
The production is handled by the renowned studio J.C.Staff. Katsushi Sakurabi directs the series, with Hiroshi Onogi overseeing the series composition and scripts. Character designs are provided by Yukie Suzuki, and Ryo Takahashi is composing the music.
From Light Novel to Animated Revenge Tale
The original light novel series by Shisui Meikyo began serialization on the Shōsetsuka ni Narō online platform in April 2020, with Hobby Japan publishing the print volumes since May 2021. The series has since accumulated 12 volumes as of April 2025. A manga adaptation by Takafumi Ōmae also launched in Kodansha’s Magazine Pocket in May 2021, with 17 volumes released by August 2025. Both the light novel and manga have been licensed for English release by J-Novel Club and Seven Seas Entertainment, respectively, allowing a global audience to immerse themselves in Light’s journey of betrayal and retribution.
