A manga adaptation with illustrations by Gin Ammo began serialization in Overlap's Comic Gardo website in January 2018.

Kelvin begins his new life as an adventurer, and it isn't long before he discovers his hidden disposition as a battle junkie.

From the Black Knight of the Ancient Castle of Evil Spirits to the demon within the Hidden Cave of the Sage, he revels in the fight against one foe after another.

[8] During their panel at New York Comic Con 2023, Yen Press announced that they would start publishing the volumes in print in March 2024.

It is produced by Satelight and directed and scripted by Yoshimasa Hiraike, with Miwa Oshima designing the characters and Michiru and Yuria Miyazono composing the music.