The Miserly Noble's Otherworldly Repair Manual

I was a minor noble who reincarnated in another world. Having been poor in my previous life made me miserly and frugal in this one. Guided by the principle of “never waste anything,” I awakened a one-of-a-kind special skill. Somehow, it made me immensely popular with my family and friends. Though people around me often misunderstood me, I always found my own way to solve the problems that kept coming one after another. Before long, people had even dubbed me “the Treasure Trove Tightwad.”