Haruko Ichikawa's Cosmic Mimimi Manga Debuts November 25
Kodansha's Monthly Afternoon announced the "neo kawaii sci-fi" series, which follows a creature named Mimimi in a "cool" and "dreaming" city.
Haruko Ichikawa will launch a new manga titled Cosmic Mimimi, Kodansha's Monthly Afternoon announced in its December issue, according to Anime News Network. The series will debut in the magazine's next issue on November 25, 2026.
The magazine describes Cosmic Mimimi as a "neo kawaii sci-fi" work. The story follows a creature named Mimimi, who lives in a "cool" and "dreaming" city and aims to make everyone happy.
Ichikawa previously created Land of the Lustrous, which launched in Kodansha's Afternoon magazine in 2012. That series ended in April 2024, and Kodansha published its 13th and final compiled volume in November 2024.
Award-winning track record
Land of the Lustrous received the grand prize in the 45th Nihon SF Taishō Awards from the Science Fiction & Fantasy Writers of Japan in 2025. The Japanese Association for Gender, Fantasy, & Science Fiction gave the manga its top prize in the Sense of Gender Awards in August 2025.
A 12-episode anime adaptation of Land of the Lustrous premiered in October 2017. Sentai Filmworks released the anime in a steelbook complete collection in January 2019.
Quick answers
When does Cosmic Mimimi start?
The manga debuts in Kodansha's Monthly Afternoon on November 25, 2026.
What is Cosmic Mimimi about?
It is described as a "neo kawaii sci-fi" story about a creature named Mimimi who lives in a "cool" and "dreaming" city and wants to make everyone happy.
Who created Cosmic Mimimi?
Haruko Ichikawa, the creator of Land of the Lustrous.