Kurotsuki no YaergnachtKurotsuki no Yaergnacht.

Kurotsuki no Yaergnacht (Japanese: 黒月のイェルクナハト, Hepburn: Kurotsuki no Ierukunahato; lit. 'Yaergnacht of the Dark Moon') is a Japanese manga series written and illustrated by Kō Suzumoto. It began serialization in Kodansha's Weekly Shōnen Magazine in April 2025, and has been compiled into five volumes as of August 2026.