Born into a family of blacksmiths, Barney was alone in his previous life. In his second life, he grew up with a loving family and wanted to repay their love. Then, he awakened to the job of “Magic Tool Engineer“… but this was actually an extraordinary ability that allowed him to make anything!? He easily creates magic tools such as translators that can talk to magical beasts and item detectors, and decides to use his power to take over the family business! However, while gathering materials with his brother, the strongest magical beast attacks them —

“I still have my Magic Tool Engineer power! Believe in me!!”

Barney’s strongest magic tool, awakened by the power of family bonds, overwhelms the powerful enemy!! And the rumor spreads throughout the royal capital…? The story of a small but strongest Magic Tool Engineer and his incredible creations begins!