Yosuke Kokuzawa is a Japanese manga artist known primarily for his work as the illustrator of the popular series I Was Reincarnated as the 7th Prince So I Can Take My Time Perfecting My Magical Ability. He made his professional debut in 2009 with the manga Choujin gakuen: konton mouryou seishun jihen, which was published in Kodansha's Bessatsu Shonen Magazine. Following his debut, he created two additional short series before taking on his most prominent project.

Kokuzawa is the artist and adapter of the manga I Was Reincarnated as the 7th Prince, which is based on the light novel series written by Kenkyo na Circle with original character designs by Meru. The manga began serialization on Kodansha's Magazine Pocket app in 2020. As the series illustrator, Kokuzawa is responsible for translating the original story and character concepts into the visual language of the manga, a role that has earned him recognition as the face of the franchise for many readers. His work on the series has been commercially successful, with the manga selling over eight million copies.

The popularity of Kokuzawa's manga adaptation directly led to the production of an anime television series, which premiered in 2024. The anime, produced by Tsumugi Akita Anime Lab and directed by Jin Tamamura, credits Kokuzawa's manga as a primary source for the adaptation. He is frequently listed in production credits and promotional materials for the anime, underscoring his integral role in the franchise's multimedia expansion. As of 2025, the manga series remains ongoing, with new volumes being released regularly, solidifying Kokuzawa's position as a notable contemporary manga artist working within the fantasy and isekai genres.