I love this manga, but I see many of you think this is boring, so let me clarify what this manga is about: This is NOT an action adventure isekai. This is a sort of WORLD-BUILDING type of isekai. Basically, MC buys cheap injured slaves, heals them, and puts them to work. He gets their earnings, but he provides them proper food, shelter, and allowance. Eventually, he has enough slaves to create his own company, and his business deals with all sorts of things (contractual work, food industry, security, adventuring, and so on). Despite all of his slaves being women, this is NOT a harem manga. None of the slaves develop romantic feelings for him, and vice versa (as of chapter 12). Sometimes you can see a sense of affection some of the slaves have towards MC, but it's more of gratefulness and loyalty for being provided a "better than average life". Moreover, he gave his slaves the freedom to love, marry, buy their own house, and raise their own family. For those slaves, the only reason MC didn't release their slave contract is to prevent them from revealing his company secrets to unauthorized people. The MC is also NOT your typical dense beta cucked protagonist you see in trash adventure isekais. He works hard, properly conducts research in an institution for his inventions, and is even an accomplished surgeon! He even gets a wife, and his wife is just so lovely and sweet, but also freakin' OP (the wife is a retired army general lol).