I recommend the following novels to you. They all meet your requirements: " This World Could Be Fake ": Although there is no harem, the protagonist is a blissful bachelor. " God's Paradise ": Although there was no harem, there was an interesting plot and an original time-travel theme. " The Arrival of the True Ancestor ": Although there was no harem, there were infinite dimensions of the heavenly species and the theme of race breakthrough. " The Unlimited Rampaging of the Heavens ": This book has a harem, and it's an infinite theme. However, you have to note that the male lead is a scumbag who opens a harem. I hope you like my recommendation.