The setting does not matter however the protagonists overall goal should be to create a harem, even better if the protagonists strength is tied to the harem. Mtl is fine No BL
Ancient Strengthening Technique (Lewd MC, Mature women, cheesy plot) Keyboard Immortal (comedy story, not that much action but definitely other ''actions", lots of girls) Long Live Summons (harem seeking guy, lots of girls) I Am A Gao Fushuai Villain (Cool MC, Wish fulfillment, MILF is hot) I Became the Rich Second-Generation Villain (harem-seeking is necessary for survival for the MC) Hedonist Sovereign (incomplete translation but a long list of girls, a bit sad ending after all that much development)
There's a jp novel long ago.. a guy transmigrated to other world, and when he was choosing his stats. He put all of his stats to harem maybe the other still remember the title. xD
S*ave Harem in the Labyrinth of the Other World Road to Kingdom Kujibiki Tokushou: Musou Hāremu ken Skill Taker’s World Domination ~ Building a S*ave Harem from Scratch Are some of other novels
The Oppai Dragon. The only sad thing is that it never crosses the line. Dude could have slept with have the female characters, but it's shounen, so that will never happen. At most there will be a time skip showing them all with their children.
Isn't that part of the title? Or description, I can't remember but I know the novel you're taking about.