Aka no Grimoire (Japanese: 赫のグリモア, Hepburn: Aka no Gurimoa, "Crimson Grimoire") is a Japanese manga series written and illustrated by A-10.

It was serialized in Kodansha's shōnen manga magazine Bessatsu Shōnen Magazine from September 2018 to November 2020, with its chapters collected in five tankōbon volumes.

Written and illustrated by A-10, Aka no Grimoire was serialized in Kodansha's shōnen manga magazine Bessatsu Shōnen Magazine from September 7, 2018,[3] to November 9, 2020.

[4] Kodansha collected its chapters in five tankōbon volumes, released from February 8, 2019,[5] to January 8, 2021.

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