Earth Star Novel’s September lineup lands today with two fan-favorite series stepping into pivotal arcs. Isekai wa Neko to Tomo ni（異世界は猫と共に） Vol.4 escalates into a nobles’ tournament where SE-crafted magic gear meets high drama, while Ryomin Zero-nin Start no Henkyō Ryōshu-sama（領民０人スタートの辺境領主様） Vol.14 shifts the spotlight to a fast-growing next generation—and the first stirrings of elven intrigue. Here’s what’s fresh, why it matters, and where to sample chapters for free.
Earth Star Novel September 2025 Releases at a Glance
Two new volumes drop on Sept 18, 2025: Isekai wa Neko to Tomo ni Vol.4 (Poge / art by Mataichi Mataro) and Ryomin Zero-nin Start no Henkyō Ryōshu-sama Vol.14 (Furo / art by Kinta). You can sample new chapters on the publisher’s site and then jump to purchase if it clicks.
Isekai wa Neko to Tomo ni Vol.4: Tournament Heats Up
Fresh off a wedding ceremony arc, Team Orihime enters a high-stakes court tournament where rival houses measure power in full view of the kingdom. The hook? Protagonist Yū’s engineer-first mindset—magic swords and mantles he designed—lets strategy and tools define the fights. The semifinal finally pits them against the Felker Marquis, the very house that once wrote Yū off. Expect a clash between Felker’s elite magic knights (led by a top-class mage) and Orihime’s bespoke gear with cat-side warmth still intact.
SE-Crafted Magic Gear, Cats, and New Stakes in Vol.4
Vol.4 keeps the series’ charm—deadpan engineering jokes, feline comfort, and tinkerer pride—while raising the spectacle. If you came for workshop problem-solving and stayed for found-family feels, this is your volume. Bonus: the manga Vol.1 launches the same month, making it easy to onboard comic-first friends.
Ryomin Zero-nin Start Vol.14: Next-Gen Takes the Stage
On the frontier, success breeds new responsibilities. While Eima’s expedition proves the village can thrive without Dias on point, Dias’ team slays a Flame Dragon off-screen—setting a confident but delicate mood back home. The standout thread is kids growing fast across beastfolk families, and how stories shape them: after hearing Dias’ hero tales, Senai and Aihan begin training to protect others. Meanwhile, an elf faction in the Beast Kingdom starts moving in the shadows, and newcomer Arhal provides fresh eyes on village life.
Flame-Dragon Aftermath, Elven Plots, and Village Growth
Vol.14 reads like a hinge volume: domestic warmth (babies everywhere, facility tours, a clever “learned in the egg” gag) balances brewing risks. The theme is succession—what happens when today’s heroes pass the torch. With a TV anime announced, the momentum behind this saga keeps climbing.
Try Free Previews, Then Jump to the Purchase Links
Browse official previews and details, then hop to each volume’s page for formats and retailers.
Earth Star Novel — Official page (free previews)
Isekai wa Neko to Tomo ni Vol.4 — Book detail
Ryomin Zero-nin Start Vol.14 — Book detail
Where to Start Reading Today
If you’re new, sample both and pick the arc that grabs you—tech-driven duels with cats, or a frontier village growing into its future. Either way, September delivers a great jumping-on point.
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