A certain young man was reincarnated as a young boy Leirus, as he is destined to defeat the demon king as the hero…. or not. Rather, he is put to work as a slave, waiting for death to take him from this world. Leirus who turned 15 was attacked by a chimera while being transported to a mine, and managed to escape through the confusion. However, without food, he was on the verge of starving to death, when he is suddenly brought back to life by a kind hearted girl Corona, the daughter of a dining hall. Leirus who manages to scrape by becomes an adventurer and finally experiences the kindness of people. However, the place he finds doesn’t last for long- The chimera’s shadow once again looms over him. In order to repay everyone who has helped him, Leirus has to stand up against his old foe! What do you think about this manga?