It was serialized in Shueisha's monthly magazine Jump Square from December 2016 to March 2018, and later on the digital platform Shōnen Jump+ from April to July 2018.

Jiro Azuma is a teenage punk, trained in the art of the ninja, who has the incredible ability to talk to animals.

The cat reveals himself as Rago of the Black Star of Doom, an immortal mononoke, or evil spirit.

Silverman found Takaki's art style similar to Tite Kubo's, of Bleach fame, and to other Shōnen Jump authors, but she said that it does not feel like an imitation of any of them.

Silverman concluded: "If you're in the mood for a new shounen action series, this is one worth checking out, because once it works out its issues, it could definitely go places".