How Big Is Too Big? Harem Size, Character Depth, and Reader Fatigue

One of the most common conversations I see among readers of men’s harem fantasy and dark fantasy isn’t about magic systems, worldbuilding, or power scaling.

It's about size.

Not world size.

Not stakes.

Harem size.

After writing multiple books in the Grimoire of Lust series and spending a lot of time listening to reader reactions, I’ve realized this question comes up again and again, usually phrased as some version of: How big is too big?

The longer I write in this genre, the more I think the answer has very little to do with numbers.

Family vs. Army

Broadly speaking, readers tend to fall into two camps.

Some prefer smaller, tighter harems where every relationship feels distinct and earned. These readers care about remembering who’s who, watching dynamics evolve, and feeling the emotional weight of absences, arguments, and reconciliations. For them, a harem works best when it feels like a chosen family.

Others enjoy large harems, sometimes very large ones. In those stories, size becomes part of the fantasy. A sprawling harem signals power and dominance. It suggests the protagonist has reached a level where attraction, loyalty, and influence flow toward him almost automatically.

Neither preference is wrong, but each comes with its own trade-offs.

Writing Large Harems: The In-World Logistics

This tension between small and large harems shows up directly in my own series.

In Grimoire of Lust, there are multiple models of large-scale covens. Ravenna “Queen” Carter controls a coven of over three hundred witches. Ambridge Dalston, leader of the Nocturnus Conclave, commands a similarly massive organization.

In both cases, intimacy isn’t the point.

These covens function more like armies or courts than families. Power flows downward. Loyalty is enforced. Distance is deliberate. Scale brings control, reach, and survival, but it also strips away personal connection.

Chris Daniels exists at the opposite end of that spectrum.

At thirteen coven members, he already feels stretched thin. Not just emotionally, but practically. As a focal, he isn’t simply a leader. He’s a power source, mentor, partner, anchor, lover, and emotional center. Every new member adds strain: time, attention, energy, and trust.

Within his own coven, there’s tension. The original coven core believes expansion is necessary for protection. Bigger covens survive. Smaller ones get swallowed.

Chris understands that logic.

But for him, his coven isn’t an army. It’s family. And he worries that if it grows too fast, it will lose the warmth and closeness that made it worth protecting in the first place.

That tension between survival and connection is something I keep coming back to as a writer—no matter how large his coven eventually becomes.

What Readers Actually Seem to Want

After talking with readers, one thing has become clear: most aren’t fixated on harem size itself. What they care about is character depth.

Readers are generally happy to follow a small or a large coven as long as the characters feel like people, with distinct voices, clear motivations, and relationships that change over time.

A harem of four can feel meaningless if no one has depth.A harem of thirty can work if the author takes the time to flesh out roles, personalities, and make the characters feel human.

So, where do you land? Do you prefer smaller, close-knit harems, or large covens that feel closer to armies?

Leave a comment, and thanks for reading.