After reincarnating into another world, Saitou utilizes his "Handyman" skills from his past life and starts anew as an adventurer. His party consists of Raelza, a heavy warrior, Lafanpan, a fairy specializing in magic healing, and Morlock, a mage who forgets his spells. In this well-balanced party, Saitou silently wondered if he was useful. On the other hand, he feels happy whenever his comrades need him.