A Japanese manga series written and illustrated by Ōima Yoshitoki.
It has been serialized in Weekly Shōnen Magazine since November 2016, with the individual chapters collected and published by Kodansha into fourteen tankōbon volumes as of December 2020.
The story follows an immortal being whose purpose is to gain knowledge of the world. As the story progresses, this being takes the form of an abandoned boy and his wolf.
An anime television series adaptation by Brain's Base premiered on April 12, 2021, after a 6 month delay due to COVID-19, and a sequel is due for release on Fall 2022.
