A man who died from overwork as a company slave reincarnated as Sawasdee, the third son of a merchant in another world. His specialty is regeneration magic and support magic. He comes up with a new seed of business that uses the magic of that cheat performance. It’s about treating cheap slaves with regenerative magic and getting them to make money. Earnings are steadily increasing, but he has begun to be noticed by his research on demons … Can Sawasdee live leisurely? Another world loose fluffy fantasy, the long-awaited comicalize!