The young boy Felix, who admires the Kingdom’s Knights, is suddenly on a certain day set up as the Kingdom’s crown prince, unanticipating that he would live a life immersed in s*x. There is a queen who is also a mother, there are maids, and an ex-boss female knight, but other cougars approach! The innocent boy’s reasoning is on the brink of destruction.... more>>

With over 50 books at this point, the Harem Series is by far the longest 18+ LN series out there. Most of the novels aren’t directly connected, but they all take place in the same fantasy world.

For now, let’s take a look at very first entry in the series: Harem Castle (ハーレムキャッスル). <<less

The setting moves out to the high seas for the second entry in the Harem Series: Harem Pirates (ハーレムパイレーツ)

A sequel of sorts to A Queen Disgraced. Follows a ninja bodyguard tasked with protecting a princess in the Orsini-Sabrina Double Kingdom a while after... more>> the two kingdoms combined. <<less

Set in the same world as the Harem Series, this novel was written before it.... more>>

This novel tells the story of how one of the major players in the setting (of the Harem Series) came to be. By pure coincidence, the most recent novel in the Harem Series is something of an epilogue to this story. The first chapter is a summary of this book's events, but it retcons some things to better fit the lighter tone of the Harem Series by making certain events a little more consensual. For example, the retconned version has Selune initially scare Malicia off by having s*x with his maids in front of her instead of what you'll see here. <<less

The story takes place in the Ralfint Kingdom just like The Two Dancing Blades and directly references some of its characters.
The story is about... more>> an orphan who was taken in by a powerful general who has three daughters but always wanted a son. The general asks that the boy marry one of his daughters to officially become his son, so he has to choose one of them. (If they're willing, of course.) <<less

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.... more>>

It's about a swordswoman whose student is captured, so she goes to rescue her. <<less

Some time has passed since the events of Harem Dynast, so Lorent and Ansandra have a teenage daughter and Lucy has a teenage son. The... more>> story follows that son who is childhood friends with the princess and has been placed in charge of a merchant caravan full of beautiful girls and women. <<less

Harem Dynast is the story of a princess set up in a political marriage with King Lorent, a great conqueror who is often mentioned in... more>> the Harem novels. <<less

Harem Sister follows Hilcruz, son of Hilmedes from Harem Castle, as a church shelters him and he plots his revenge against the Ishtar Kingdom.