Kyowno is the creator and illustrator of the manga The IDOLM@STER Cinderella Girls U149. This manga is a spin-off of the video game The Idolmaster Cinderella Girls, which was created by Bandai Namco Entertainment and Cygames. The series began serialization on October 15, 2016, in the web comic magazine Cycomi, published by ASCII Media Works.

The central premise of the manga focuses on a newly established division within a production agency dedicated to a group of young idols who are all in elementary school and stand under 149 centimeters tall. The narrative follows these nine aspiring idols and their newly assigned producer as they work towards achieving success in the entertainment industry. The manga concluded its run in November 2024, having been serialized for eight years and compiled into seventeen volumes.

A television anime adaptation of the manga was produced by the studio CygamesPictures. It was announced in April 2022 and aired from April to June 2023, consisting of twelve episodes and an original video animation. The series was directed by Manabu Okamoto, with a script by Oki Murayama and character designs by Norie Igawa. Kyowno is credited as the original creator for the anime, with roles including Original Plan and Creator for the original manga story and art.

Information regarding Kyowno's personal background, artistic identity, recurring themes, and broader industry significance is not available. No biographical details about the creator, such as date of birth, nationality, or artistic influences, are documented in the search results.