is a Japanese light novel writer. He is best known as the creator of the fantasy series That Time I Got Reincarnated as a Slime, which originated as a web novel before being published as a light novel series and adapted into manga, an anime television series, and feature films.
Fuse has kept most details of his personal life private.
In 2013, Fuse began serializing That Time I Got Reincarnated as a Slime on the Japanese web novel platform Shà Âsetsuka ni Narà Â, a website that allows users to publish original fiction.
The web novel was later acquired by Micro Magazine, which began publishing the series as a light novel under its GC Novels imprint in 2014, with illustrations by Mitz Vah.
The series was licensed for English-language publication by Yen Press.
The light novel series concluded in 2025 with its twenty-second volume, completing the main storyline originally established in the web novel format.
Following the success of the light novel series, That Time I Got Reincarnated as a Slime was adapted into multiple manga series. The primary manga adaptation began serialization in Monthly Shà Ânen Sirius, with Fuse credited for the original story.
An anime television series adaptation produced by Eight Bit premiered in 2018. Subsequent seasons, original video animations, and feature films were released as part of the franchise's expansion.
In interviews, Fuse has stated that material from the original web novel was revised and expanded during its adaptation into a light novel format, allowing for additional world-building and narrative refinement.
That Time I Got Reincarnated as a Slime achieved commercial success following its publication as a light novel and has been cited by industry publications as an example of a web novel transitioning into a large multimedia franchise.