Gunka no BaltzarGunka no Baltzar.

Gunka no Baltzar (Japanese: 軍靴のバルツァー, Hepburn: Gunka no Barutsuā) is a Japanese manga series written and illustrated by Michitsune Nakajima. It began serialization in Shinchosha's seinen manga magazine Monthly Comic Bunch magazine in January 2011. It was later transferred to Kodansha's shōnen manga magazine Bessatsu Shōnen Magazine in August 2022.