Dungeon Diving in a Magical Kingdom as a Side-Hustle

Who This Book Is For

Readers who want a likable, down-to-earth MC exploring a richly built fantasy world with monster girls and dungeon mechanics

Who This Book Is NOT For

Anyone looking for a long, complete story — this reads more like the first act of a bigger narrative

Our Review

The Setup

Life is a grind for a roofer running his own business while supporting his mother and sister. His daily routine is storage sheds, invoices, and roof repairs. Then a tenant passes away, leaving behind a storage unit with contents that need sorting. Inside, he finds a bracelet that digs into his wrist, floods his vision with light, and transports him to Aetheria — a planet with magic, dungeons, cultivation systems, and creatures of every variety.

The clever hook is that the bracelet lets him travel between worlds. He does not abandon Earth. He keeps his roofing business, his family obligations, his real life. Aetheria is, as the title says, a side-hustle — one that happens to involve a cat girl, an elf, dungeon crawling, and a cultivation system that works like a video game’s leveling mechanics.

What Works

The world-building is genuinely impressive for a debut. Jordan creates Aetheria with enough cultural and geographical detail that it feels like a real place rather than a generic fantasy backdrop. Reviewers consistently highlight the world’s richness, and it provides a foundation that could sustain a long-running series.

The protagonist is the book’s biggest asset. He is likable without being saccharine, snarky without being obnoxious, and morally grounded without being preachy. Multiple reviewers compare him favorably to MCs in more established series, noting that he feels like a real person rather than a reader’s blank-slate avatar. One reviewer specifically praised that the story prioritizes narrative quality over gratuitous content, making the intimate scenes land better when they arrive.

The dual-world mechanic is underused in harem fiction, and Jordan deploys it well. Scenes on Earth ground the story, give the MC real-world stakes, and break up the fantasy sequences effectively. A UK reviewer specifically praised this aspect, noting how it creates natural pacing breaks.

What Doesn’t

The book is short. At 290 pages, it feels more like the first act of a larger story than a complete novel. Several reviewers note that it reads like a web serial — events happen, situations develop, but nothing reaches a satisfying conclusion before the book simply stops. If you need narrative closure, this will frustrate you.

One reviewer flagged a common harem fiction oversight: the non-human features of the cat girl (ears, tail) are inconsistently described or forgotten entirely during scenes where they should be relevant. It is a minor detail, but for readers drawn to monster girl content specifically, these physical details matter.

The Heat

This scores a 4 on the spice scale. The book describes itself as featuring “tasteful, yet heavily skewed towards graphic love scenes,” which is accurate. The intimate content is explicit, but Jordan integrates it into the story rather than treating it as separate set pieces. As one reviewer noted, the quality of the narrative makes the explicit content more effective.

Bottom Line

Dungeon Diving in a Magical Kingdom as a Side-Hustle punches above its weight class. For a debut novel, the world-building is uncommonly strong, the protagonist is genuinely enjoyable to follow, and the dual-world premise creates possibilities that most portal fantasies ignore. Its biggest weakness is also a compliment — it is too short, leaving readers immediately wanting more. If Jordan can deliver longer installments with proper story arcs, this series has real potential. At 4.7 stars across 669 ratings, readers agree.

Keep Reading

• Browse all harem books by sub-genre
• Best harem books of 2026 — ranked by our editors
• All harem books on Kindle Unlimited

If You Liked This, Try