Kuma-Jet, also known as Kumajet, is a manga artist and illustrator recognized for his work on original comedy manga and his contributions to major multimedia franchise adaptations. He is credited as the original creator behind the manga and anime series Umayon, a spin-off of the popular Uma Musume Pretty Derby franchise. Within the anime industry, Kuma-Jet is known for his distinctive four-panel manga style, often focusing on lighthearted, slice-of-life narratives centered on character interactions.

His career as an original creator is notably tied to his work on the Idolmaster Cinderella Girls franchise. Kuma-Jet is the author and artist of the Idolmaster Cinderella Girls Gekijō manga, a four-panel comedy series that adapts the game's characters into short, humorous scenarios. This manga served as the foundation for the Idolmaster Cinderella Girls Theater anime series, for which Kuma-Jet is credited as the original character designer across multiple seasons, including the second season, the third season, the Climax Season, and the Extra Stage ONA. His involvement extended beyond design, as he also contributed as a storyboard artist for the second season and served as series director for the Extra Stage.

In the realm of original manga creation, Kuma-Jet is best known for Umayon, which began serialization on the Cycomi website in March 2018. The manga is a collaborative work where Kuma-Jet is responsible for the illustrations while Jin Itou handles the story, with Cygames credited for the original concept. Set in the world of Uma Musume Pretty Derby, Umayon follows the daily lives of beloved horse girl characters such as Special Week and Silence Suzuka in a comedic, four-panel format. The manga was adapted into a short anime television series that premiered in July 2020, produced by studios DMM.futureworks and W-Toon Studio, with Kuma-Jet officially listed as the original creator for the art. His artistic identity in these works emphasizes simplified, expressive character designs and gentle humor, traits that align with the four-panel comedy genre.

Beyond these major franchises, Kuma-Jet has taken on roles in other notable anime productions, often in publicity or production capacities. He served as a contents producer for the Grand Blues! television anime, based on the Granblue Fantasy franchise, and as a publicity producer for the original anime special Sorairo Utility. He was also involved in the anime adaptation of Arknights: Prelude to Dawn in a publicity role. His consistent involvement with Cygames-related properties, including Uma Musume, Idolmaster, Granblue Fantasy, and Arknights, underscores his industry significance as a creator who bridges original manga artistry with multimedia franchise development. Kuma-Jet maintains an active presence on social media under the handle @kumajet.