株式会社一迅社

What 株式会社一迅社 does

株式会社一迅社 (Ichijinsha Co., Ltd.) is a privately held Japanese manga and light novel publisher headquartered in Shinjuku, Tokyo. The company publishes six monthly manga magazines — Monthly Comic ZERO-SUM, Monthly Comic REX, Comic Yuri Hime, gateau, DNA Media Comics, and comicPOOL (via pixiv) — and operates five novel and light novel imprints including Ichijinsha Bunko Iris, Iris NEO, Ichijinsha Novels, Ichijinsha Melissa, and LOVEBITES, alongside specialty imprints such as Colorful Happiness and Babydoll Comics. Distribution spans physical bookstores (using a slip-less system implemented in August 2018), online retailers including Amazon Japan, the company's own ichijin-shop.jp e-commerce storefront, and free web manga platforms (Ichijin Plus, Zerosum Online, comicHOWL, comicLAKE) that act as discovery funnels for paid print products. Ichijinsha also maintains WebFebri, a free anime-focused web media property, and operates Bookこねくと, a B2B bookstore ordering platform jointly run with Kodansha's Web Maruko since March 2021.

The company's revenue model is diversified across one-time print sales (manga volumes at ¥792–¥880 B6 format, anthologies ¥897–¥1,210, special editions ¥935–¥1,089, light novels at ¥1,430), recurring monthly magazine subscriptions and newsstand sales, e-commerce merchandise, and freemium web content monetized through IP licensing. Anime adaptations are the primary demand-generation mechanism: six or more TV anime series based on Ichijinsha titles are scheduled for summer 2026, with additional 2027 adaptations already announced, and a robust pipeline spanning stage plays, merchandise, and the official ichijinshaPV YouTube channel that has surpassed 100,000 subscribers. Manga volumes are priced in tax-included JPY and sold across multiple formats (B6, A5, 四六判), with special editions carrying premium pricing for bonus content. The company is ABJ-compliant (registration number 6091713) for legitimate ebook distribution, indicating participation in the regulated digital distribution ecosystem.

Ichijinsha is led by Representative Director and President Masaaki Kagugetsu (嘉悦正明), who assumed the role on October 28, 2025, succeeding Masahiro Nouchi (野内雅宏) who held the position from October 2018. The company has no disclosed parent company, no institutional investors, no disclosed funding rounds, no acquisitions, and no public ticker, operating as an independent publisher. Its core customer base consists of manga and light novel readers in Japan, otaku/anime fandom communities, and the dedicated yuri manga readership served by Comic Yuri Hime, with primary geographic focus on the Japanese domestic market. The business has issued public statements against internet piracy and modernized retail relationships through its slip-less distribution and Bookこねくと ordering platform, indicating ongoing operational investment in distribution efficiency.

Name

株式会社一迅社

Legal name

株式会社一迅社

Website

https://ichijinsha.co.jp

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Ichijinsha Co., Ltd. is a privately held Japanese manga and light novel publisher headquartered in Shinjuku, Tokyo, operating six monthly magazines and multiple novel imprints, distributing print and digital content to Japanese readers while leveraging anime adaptations as its primary demand-generation engine.

Ownership category

akta.pro rank

Product category

Manga and Novel Publishing

NAICS

Book Publishers (51313), Periodical Publishers (51312)

SIC

Books: Publishing Or Publishing & Printing (2731)

akta.pro primary industry

Manga Publishing (Japanese & Global) (MPAJAGAA)

akta.pro secondary industries

Digital Comics, Manga & Serialized Reading Platforms (BPAMAJAJ), Adult/Seinen/Josei Comics Publishing (MPAJAGAJ)

Keywords

• Manga publishing
• Light novel publishing
• Web manga platform
• Monthly comic magazines
• Digital comics distribution

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Digital Commerce or Content

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Supply Chain, Others

Revenue model

1. Manga and Comic Volume Sales: Sale of physical manga/comic volumes (単行本) through bookstores and online retailers. Multiple imprints publish titles across genres including romance, fantasy, isekai, and yuri.
2. Magazine Subscriptions and Newsstand Sales: Monthly magazine publications including 月刊コミックゼロサム, 月刊コミックREX, コミック百合姫, gateau, and others sold through newsstand and subscription channels.
3. Novel Publications: Publication of light novels and novels through imprints including 一迅社ノベルス, 一迅社文庫アイリス, 一迅社メリッサ, and LOVEBITES.
4. E-commerce and Merchandise: Online shop (ichijin-shop.jp) selling books, merchandise, and fan goods directly to consumers.
5. Web Content Platform: Free web manga platform Ichijin Plus drives readership; content is free to read and attracts users to paid print publications. ゼロサムオンライン delivers serialized manga content.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels8 records

Core offering

株式会社一迅社 is a Japanese manga and light novel publisher that operates multiple monthly manga magazines (月刊コミックゼロサム, 月刊コミックREX, コミック百合姫, gateau) and several novel/light novel imprints (一迅社文庫アイリス, 一迅社ノベルス, 一迅社メリッサ, LOVEBITES). The company also runs free web manga platforms (一迅プラス, ゼロサムオンライン, comicHOWL, comicLAKE, comicPOOL), the anime-focused web media WebFebri, specialty manga imprints (DNAメディアコミックス, カラフルハピネス, ベビードールCOMICS), and a direct-to-consumer online shop (ichijin-shop.jp). Its core business is commissioning manga artists and novelists to create content published in print and digital formats, with anime adaptations serving as a major demand-generation mechanism for source material sales.

Product overview

株式会社一迅社 is a Japanese manga/comics and light novel publisher operating a multi-platform publishing business. The company publishes print magazines including 月刊コミックゼロサム, 月刊コミックREX, コミック百合姫, and gateau; manages multiple light novel and novel imprints such as 一迅社文庫アイリス, アイリスNEO, 一迅社ノベルス, 一迅社メリッサ, and LOVEBITES; and operates web comic platforms including 一迅プラス (Ichijin Plus), ゼロサムオンライン, comicHOWL, comicLAKE, and comicPOOL. The company also publishes through specialty imprints like DNAメディアコミックス, カラフルハピネス, and ベビードールCOMICS, and maintains web media properties like WebFebri. The portfolio covers manga, yuri, romance, fantasy, and light novel genres with a focus on media mix adaptations including anime, stage plays, and merchandise.

Differentiator

Problem solved

Functional benefit

Brands

• 月刊コミックゼロサム: Monthly manga magazine published by Ichijinsha featuring various manga series.
• 月刊コミックREX
• コミック百合姫
• gateau
• 一迅社文庫アイリス
• 一迅社ノベルス
• DNAメディアコミックス
• LOVEBITES

Products and services

• 月刊コミックゼロサム (Monthly Comic ZERO-SUM)

Quantifiable outcome

• 6+ anime adaptations announced for summer 2026 season
• +1 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Akita Shoten: Mid-sized Japanese manga publisher (Champion, Young Champion, Princess). Comparable monthly magazine cadence and reliance on anime adaptations to drive volume sales.
• Tokuma Shoten: Mid-tier Japanese publisher (Monthly Comic Zenon, Comic Ryu). Comparable scale and business model, with monthly magazine imprints and anime-driven IP licensing.
• Kadokawa: Direct competitor across manga, light novels (Dengeki Bunko), anime production, and web novels. Kadokawa's MF Bunko J and Comptiq overlap heavily with Ichijinsha's Bunko Iris and Comic REX imprints.
• Media Factory (Kadokawa): Light novel and manga publisher (MF Bunko J, Comic Flapper, Monthly Comic Alive). Strong overlap with Ichijinsha's light novel and isekai manga strategy.
• Hakusensha: Mid-sized manga publisher (Hana to Yume, LaLa, Young Animal). Closest direct peer in size and niche genre focus, especially in josei/yuri-adjacent romance, similarly leveraging anime adaptations of select titles.
• Square Enix (Manga & Books): Operates Gangan Comics (Monthly Shonen Gangan, Gangan Joker, Young Gangan) and light novel imprints. Direct competitor for isekai/fantasy manga creators and anime adaptation slots.

Broad incumbents

• Shogakukan: Major manga and book publisher (Sunday Gene-x, Big Comic, Manga One). Sister company to Shueisha via Hitotsubashi Group; competes broadly with Ichijinsha for manga creators and anime IP rights.
• Kodansha: One of Japan's largest manga publishers (Morning, Attack on Titan, Fairy Tail). Comparable in monthly magazine publishing and anime adaptation pipeline, but at vastly larger scale; sets pricing and adaptation benchmarks that Ichijinsha follows.
• Shueisha: Publisher of Weekly Shonen Jump, Jump SQ, and Margaret. Dominates shonen manga and sets industry trends that cascade into Ichijinsha's mid-tier titles. Closest analog for magazine + anime adaptation + digital platform model.

Emerging players

• Earth Star Entertainment: Smaller Japanese publisher specializing in yuri and BL manga (Comic Earth Star, Harta). Direct competitor specifically in the yuri niche where Ichijinsha's Comic Yuri Hime leads.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/ichijinsha_info
• YouTubeyoutube.com/@ichijinshaPV
• LinkedInlinkedin.com/company/%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BE%E4%B8%80%E8%BF%85%E7%A4%BE

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about 株式会社一迅社