This needs a Harem tag!
To start off with this MC is NOT a kind, nice or even sympathetic. He is SUPER manipulative and knows how to use everyone, he is fake and will use anyone and anything. Everyone around him is stupid, including the regressor which those two things made me want to drop it however I was rooting for character development or something. It will definitely not happen he is basically a evil MC.
As of chapter 16 he had 2 girls added to his future big harem. I had to search it up to make sure the manhwa didn't just give off the vibe and it is definitely a harem.
The art is hmm at times really good but at other times bad, bad to where you think "How could this be the same author"