For those following the story, the manga follows a protagonist with only one month left to live who decides to spend his remaining time building a "magical girl harem" to become a king in another world. The plot has recently escalated in intensity as the protagonist's "deadline" approaches.

: Volume 3 was recently published (Jan 2025/2026 timeframe depending on region).

When looking for the official chapters, raw tankōbon volumes, and digital updates, readers should utilize legitimate platforms to support the author, Shirofugu.

The harem’s “leader” — , the elegant sword magical girl — demands proof. Jin reveals his curse mark: a pulsing black sigil that expands each time he drains magical energy. If it reaches his heart, he dies instantly. If he stops draining, he dies in a month anyway.

For English translations, you may find scanlations on various aggregator sites, but availability may be limited. Please be aware that these unofficial sites may not have the most up-to-date or legally licensed content.

Makutsu no Ou Yomei Ichi Kagetsu no Doutei Mahou Shoujo Harem wo Kizuite Ou he Kunrinsu (roughly translated as The Demon Cave King: The Virgin Magical Girl's One-Month Life Expectancy Harem, Building a Harem and Ruling as King ) has become a noteworthy title in the niche of dark, fantasy-harem manga. With the release of its latest raw chapters, fans are eager to see how the protagonist navigates the high-stakes, magical world he is attempting to conquer.

Pacing-wise, this chapter feels brisk. It doesn't suffer from the "middle arc bloat" that often plagues long-running harem series. Instead, it pushes the plot forward, validating the "deadline" premise rather than dragging it out indefinitely.

The narrative follows a protagonist with only one month left to live. Rather than fading away, he decides to seize power, using forbidden magic to build a harem of magical girls and crown himself king of the "Abyss." This premise creates a desperate, fast-paced atmosphere where every chapter feels like a race against time.

Below is a complete guide to this unique and raunchy isekai series, covering its synopsis, characters, themes, and where you can read it.

Current release information indicates that of the manga

Shoichi is horrified and hesitant at first, but Ami's masterful, teasing words awaken the deep-seated desires hidden within his heart, and the story of the ultimate outsider's rise to power—forging a magical girl harem—officially begins.

Raw Chapter 61: Makutsu no Ou Yomei Ichi Kagetsu no Doutei Mahou Shoujo Harem wo Kizuite Ou he Kunrinsu