The official Twitter account for Kazue Katō 's "Blue Exorcist" announced that the series will be taking a one-month hiatus while the author recovers from COVID-19.
The manga will return in the December issue of Shueisha 's Jump SQ.
Blue Exorcist – Author contracts COVID-19 and manga will be on hiatus
The author added that a planned book signing will also be postponed until January.

Synopsis
Raised by Father Fujimoto, a renowned exorcist, Rin Okumura never knew his true father. One day, a fateful argument with Father Fujimoto forces Rin to confront a terrible truth: the blood of the Demon Lord, Satan, runs in his veins! Rin vows to defeat Satan, but doing so means enrolling in the mysterious True Cross Academy and becoming an exorcist. Can Rin fight demons and keep his infernal lineage a secret? It won't be easy, especially when wielding his father's sword unleashes the demonic power within him!
Katō launched the manga in Jump SQ. in 2009. The manga went on hiatus in July 2021 and returned in May 2022. The series also went on hiatus in January and returned in May 2023. The 29th volume of the manga was released on July 4th.
Source: Author's Twitter account
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