Before he knew it, he had been reincarnated into an 8-year-old boy named Leon from another world. At first, Leon was excited about being reincarnated into a different world with magic, but he gradually realized that he had been reincarnated as a commoner and that his life was much more inconvenient than it was in modern times. Leon, who was wondering if his life could somehow improve, learns that once he becomes a noble, he can use flush toilets and baths using magic tools. In that case, I have no choice but to aim for the nobility! A slow life fantasy in which a commoner boy reincarnated in another world uses modern knowledge to aim for a comfortable life!