Thanks for giving my novel a chance. I believe that you won't regret it. The MC is greedy, possessive, and scheming. He starts out as an opportunistic anti-hero more than an actual villain, but quickly begins slipping. However, if your idea of 'villain' is someone who skins puppies alive just for fun while cackling manically then he will never become a true villain. My idea of a 'villain' is someone who is severely lacking any moral limitations that stop him from doings things that would make him stronger, and also having very low empathy levels for outsiders. As for the harem part, I prefer small harems where each member has an actual reason to exist beyond being eye candies and trophies for the MC to show off. Therefore, each lady has an important role to play in the story, with each having at least a mini arc before/when joining, and will almost certainly have an entire future arc centered around them. You can expect about one woman/60-80 chapters average I would say. If you have any questions or comments don't hesitate to state them. Enjoy the ride! No NTR, no yuri.
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LIKENo, he won't steal wives, especially not from loving husbands with a happy marriage. As for robbing the innocents that won't happen either. In this world being rich means you've stepped on other people in one way or another, so he couldn't steal from the innocents, for they have nothing.
No, only the main girls are (for now). the others are either not love interests or are a work in progress.