The manga is a spinoff of KLab Games’ Magatsu Wahrheit smartphone role-playing game, and focuses on the character Ewalt, a member of the house of Gilbert.
The July issue of Ichijinsha’s Monthly Comic Zero-Sum magazine revealed on Thursday that Tama Yūgyōji’s Magatsu Wahrheit: Hitotsukiri no Madōsho (The One Grimoire) manga will end in the magazine’s next issue in June.
The game launched in April 2019.
The game is inspiring an anime by director Naoto Hosoda (The Devil is a Part-Timer!, The Future Diary, Shuffle!) and Yokohama Animation Lab (Miru Tights, Starlight Promises).