The main cast and key visual was also revealed.
We have some amazing news for Isekai fans! The fantasy manga series “Otherworldly Munchkin: Let's Speedrun the Dungeon with Only 1 HP!” is getting an anime adaptation this October 2025. Although we don’t know the exact release date yet, the Fall premiere was confirmed by the official website and X (formerly Twitter) account of the series. The main cast and staff of the anime have also been revealed.
“Otherworldly Munchkin: Let's Speedrun the Dungeon with Only 1 HP!” cast and staff details
The main cast of the anime includes:
- Yukito Kirihara voiced by Kazuki Ura
- Charlotte R. Brownia voiced by Kana Yuki
- Lumilia Sherwood voiced by Yui Ishikawa
- Liverna Dark voiced by Kaori Maeda
- Sana Kirihara voiced by Hika Tsukishiro
- Rosinante voiced by Fukushi Ochiai
- Managarmr voiced by Ayasa Ito
- Nephilia Curse voiced by Yoko Hikasa
- Narrator voiced by Anri Katsu
Durandal is animating and producing the studio with Mamoru Yokota as chief director. Kei Yoshimizu, Naoya Fukushi are also directing the project with Hiroshi Hosokawa composing the scripts. Mamoru Yokota, Yui Kato are designing the characters. Asami Tachibana is composing the music for the series.
The series is based on a manga written by Yu Shimizu and illustrated by Makoto Aogiri. Kodansha, who publishes the manga series describes the story as:
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!
