Unlike standard "save the world" Isekai stories, this novel starts with a premise designed specifically for an adult audience with darker tastes. The protagonist is typically reincarnated or transmigrated into a fantasy world, but rather than seeking the Demon Lord to defeat him, the goal is explicitly stated in the title: conquest and collection.
The narrative usually follows a protagonist who realizes that the "Demons" or "Monster Girls" in this new world are not just enemies to be slain, but potential partners to be dominated or romanced. This shifts the tone from a heroic adventure to a calculated, often manipulative, power fantasy.
If you want the full version of any demon harem story: eng he who vowed to create a demon harem new google full
Google Drive / Doc sharing
Some fan translators share PDFs via site:drive.google.com "demon harem"
Discord communities – Many demon harem novels are shared via private servers. Search Disboard for “Demon Harem LN” or “Harem Isekai Translations.” Unlike standard "save the world" Isekai stories, this
Genre: Isekai (Reincarnation), Dark Fantasy, Harem, Action, Mature/Adult Themes. Status: Ongoing/Hiatus (Dependent on specific version and translation group).
In this series, the protagonist gains power by becoming a “slave” to female demon-fighters. While he doesn’t vow to create a harem, the demon girls do form a harem around him. It’s available in full English scanlation. Google Drive / Doc sharing Some fan translators
Let’s break the phrase into searchable fragments:
| Fragment | Possible Meaning | |----------|------------------| | “eng” | English translation or English version | | “he who vowed” | Protagonist took a sacred/vengeful oath | | “to create a demon harem” | Goal is to collect demon girls (succubi, demon lords, etc.) | | “new” | Recently released (last 1-2 years) | | “google full” | User wants to find full chapters/series via Google search |
This is not a title but a search query typed into Google by someone hoping to find a story where the male lead swears an oath to build a harem of demonic women.