A salaryman gets reincarnated in a fantasy world as a fifteen-year-old boy named Luciel.

Luciel starts to get a handle on his healing powers and what it's going to take to improve them and survive in this new world, so he charts a course for a rather unexpected training destination-the Adventurers' Guild.

Luciel heals free and gains trust; Fed gigantic meals, drinks Substance-X; Popularity rises healing Cat-folk; Training intensifies, Brod pays fees, gifts Holy magic book.

Luciel is given a break from training to learn about butchering monsters with Gulgar's brother, Galba, and study world history and culture with Nanaella; while shopping with Nanaella one day, he discovers Monika unconscious on the street.

Luciel needs to renew his registration at the Healer's Guild.

Brod decides that Luciel needs to get stronger.