Cosmos (stylized in all caps) is a Japanese manga series written and illustrated by Ryuhei Tamura.

It began serialization in Shogakukan's seinen manga magazine Monthly Sunday Gene-X in April 2023.

Written and illustrated by Ryuhei Tamura, Cosmos began serialization in Shogakukan's seinen manga magazine Monthly Sunday Gene-X on April 19, 2023.

[10] Along with Nezumi's First Love, Cosmos ranked ninth on Takarajimasha's Kono Manga ga Sugoi!

[12] The series was recommended by manga authors Tite Kubo, Kazuhiro Fujita, Hiromu Arakawa, and Rumiko Takahashi, with comments featured on the obi of the first, second, fourth, and fifth volumes, respectively.