Grand Blue Dreaming, known in Japan simply as Grand Blue , is a Japanese manga series written by Kenji Inoue and illustrated by Kimitake Yoshioka. It has been serialized in Kodansha's seinen manga magazine Good! Afternoon since April 2014. The manga is published digitally in English by Kodansha USA under the Kodansha Comics imprint. An anime television series adaptation by Zero-G aired from July to September 2018 in the Animeism programming block on MBS. A live-action film adaptation was released in August 2020. A second anime season by Zero-G and Liber premiered in July 2025.