Ragna CrimsonRagna Crimson.

Ragna Crimson (Japanese: ラグナクリムゾン, Hepburn: Raguna Kurimuzon) is a Japanese manga series written and illustrated by Daiki Kobayashi. It has been serialized in Square Enix's Monthly Gangan Joker since March 2017, with its chapters collected in 17 tankōbon volumes as of May 2026. An anime television series adaptation produced by Silver Link aired from October 2023 to March 2024.