Bandai Namco Filmworks announced the TV anime adaptation of Yū Shimizu and Makoto Aogiri’s Otherworldly Munchkin: Let’s Speedrun the Dungeon with Only 1 HP manga will premiere in October 2025. The anime’s key visual and first promotional video were also revealed alongside the main staff and cast.

The cast of Otherworldly Munchkin: Let’s Speedrun the Dungeon with Only 1 HP includes:
- Kazuki Ura as Yukito Kirihara
- Kana Yūki as Charlotte R. Brownia
- Yui Ishikawa as Lumilia Sherwood
- Kaori Maeda as Liverna Dark
Kei Yoshimizu and Naoya Fukushi are directing the anime at studio Durandal. Moreover, Hiroshi Hosokawa is in charge of series scripts, Mamoru Yokota and Yui Katō are designing the characters. Katō is also the chief animation director.
Other staff members include:
- General Director: Mamoro Yokota
- Sub-Character Design: Yurika Sako
- Prop & Creature Design: Tengu Kobou
- Color Design: Mayu Saitou
- Art Director: Masakazu Miyake
- Background: Cre-p
- CG Directors: Yui Horiuchi, Ayuki Katayama
- Compositing Director of Photography: Shigeki Asakawa
- Editing: Nobutaka Maki (TAVAC)
- Sound Director: Yasunori Ebina
- Sound Production: Sonilude
- Music: Asami Tachibana
- Music Production: Lantis
- Production Cooperation: Tengu Kobou
- Cooperation: Wizards of the Coast
Lastly, Kodansha USA Publishing releases the manga digitally in English. Here’s the publisher’s synopsis of the series:
16-year-old Yukito Kirihara lives with his 14-year-old sister Sana, who he treasures more than anyone else. But when an ogre shows up outside of his window looking for Sana (a shocking event in its own right), Yukito leaps to save her—and is killed. He’s offered the promise of reincarnation by a mysterious woman, who gives him a character sheet in a mysterious book. But when Yukito sees Sana in there, too, he sets off to find her, and save them both—even if he only has 1 hp with which to do it!