It is an adaptation of Necoco (Writer) and Lee Brocco's (illustrator) Tsuihou sareta Tensei Juukishi wa Game Chishiki de Musou suru (The Exiled Reincarnated Heavy Knight is Unrivaled in Game Knowledge) manga. Necoco originally began writing the action fantasy story on the Shousetsuka ni Narou website in April 2021. Young Magazine Web began serializing a manga adaptation by Brocco in February 2022. Kodansha shipped the 11th volume on September 5, 2024. Jaian (Nozomanu Fushi no Boukensha) began publishing a light novel adaptation under Kodansha's Ranobe Books imprint in June 2022. The third volume went on sale on February 2, 2024.
