Fans of wild isekai setups and high-stakes dungeon runs won’t want to miss Otherworldly Munchkin: Let’s Speedrun the Dungeon with Only 1 HP!, which is set to premiere in October 2025. A thrilling new trailer and key visual just dropped, along with major updates on the voice cast and production staff. Based on the manga by Yū Shimizu and Makoto Aogiri, the series promises a fast-paced blend of game mechanics, near-death tension, and sibling-driven motivation.
📚 Dungeon Speedruns and Family Bonds
Adapted from the manga serialized in Monthly Shonen Sirius and Suiyōbi no Sirius, Otherworldly Munchkin follows 16-year-old Yukito, who dies saving his younger sister from an ogre attack. He’s reborn in a game-like world—still carrying the will to protect his sister, who was also transported there. The catch? He’s got just 1 HP. Armed with cleverness and an unbreakable bond, Yukito races through deadly dungeons in the ultimate glass-cannon isekai adventure.
The manga launched in 2019, with the 12th volume set to release on June 9, 2025. English readers can check out the official digital version through Kodansha USA.

Otherworldly Munchkin: Let’s Speedrun the Dungeon with Only 1 HP!
🗣️ Main Voice Cast
Voice Actor | Character |
---|---|
Kazuki Ura | Yukito Kirihara |
Kana Yūki | Charlotte R. Brownia |
Yui Ishikawa | Lumilia Sherwood |
Kaori Maeda | Liverna Dark |
🎨 Creative Staff & Studio
Role | Name |
---|---|
Chief Director | Mamoru Yokota |
Directors | Kei Yoshimizu, Naoya Fukushi |
Series Composition | Hiroshi Hosokawa |
⚔️ Why You Should Watch
If the idea of a one-hit-point hero outwitting monsters, traps, and fate itself sounds like your kind of journey, Otherworldly Munchkin belongs on your watchlist.
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