KADOKAWA Civil War: Former Chairman Sues CEO for 200 Million Yen Ahead of Critical Shareholder Vote

A high-stakes corporate civil war has erupted at the heart of one of Japan's most prominent entertainment conglomerates. Former KADOKAWA Chairman Tsuguhiko Kadokawa has filed a massive 200 million yen ($1.2 million) defamation lawsuit against the company's current CEO, Takeshi Natsuno, and independent attorney Tadashi Kunihiro. The lawsuit, launched on the eve of a critical shareholder showdown, exposes deep systemic divisions within the media giant behind global phenomena like Sword Art Online and FromSoftware's legendary gaming titles. This legal battle is not merely a clash of corporate egos; it is a tactical offensive that could reshape the leadership of a global media empire during a period of intense activist shareholder pressure.

Quick summary

• Former KADOKAWA Chairman Tsuguhiko Kadokawa is suing current CEO Takeshi Natsuno and attorney Tadashi Kunihiro for 200 million yen, alleging that a January 2023 internal investigation report falsely accused him of bribery-related acts and destroyed his reputation.
• The lawsuit arrives at a disastrous time for CEO Natsuno, who faces an upcoming vote for dismissal at the June 24 Annual General Meeting, driven by KADOKAWA’s largest shareholder, Oasis Management Company.
• Adding to the company's troubles, the Japan Fair Trade Commission recently issued warnings to KADOKAWA over unfair treatment of its external contractors, compounding the scrutiny on Natsuno's management.

Why it matters

This escalating dispute holds profound implications for international investors, media partners, and the global entertainment industry. KADOKAWA is a cornerstone of Japanese pop culture export, managing massive anime, manga, and publishing portfolios. Internal corporate warfare of this scale threatens to disrupt licensing deals, delay production schedules, and damage the brand's reputation with creators and external contractors.

Furthermore, the battle serves as a prime test case for corporate governance and activist investor influence in Japan. The involvement of Oasis Management highlights how international fund managers are increasingly aggressive in targeting Japanese executives who fail to manage controversies. The outcome of the upcoming board vote could set a precedent for how public companies in Tokyo navigate executive scandals and regulatory compliance.

Background: The Olympic Scandal and the Investigation

The origins of this feud lie in the high-profile corruption scandal surrounding the Tokyo 2020 Olympic Games. In January 2023, KADOKAWA published the findings of an internal investigation committee chaired by external lawyer Tadashi Kunihiro. The committee had been tasked with looking into allegations of bribery involving company leadership and Olympic organizers. Ultimately, the report concluded that there were "inappropriate acts" and "acts highly likely to constitute bribery" connected to Tsuguhiko Kadokawa, the former chairman.

Although Tsuguhiko Kadokawa was found guilty of bribery in January 2026 and is currently appealing that decision, he maintains his innocence. In a press conference held on June 16, Kadokawa argued that the 2023 internal report was fundamentally compromised. He claimed the committee lacked neutrality and was weaponized by current CEO Takeshi Natsuno to shift management blame entirely onto him. According to the former chairman, the publication of the report severely prejudiced his defense and damaged his chances of securing a fair trial during his ongoing appeals process.

The Corporate Response

In response to the lawsuit, KADOKAWA issued a statement on June 16 defending the publication of the investigation report. While the company refrained from offering detailed commentary on the active litigation, it insisted that releasing the findings was an essential step to preserve corporate value, maintain market trust, and demonstrate transparency to shareholders in the wake of a major public scandal.

A Fragile Leadership Under Fire

The timing of the lawsuit could not be worse for Takeshi Natsuno. The current CEO is already fighting for his corporate survival against Oasis Management Company, KADOKAWA's largest shareholder. Oasis has mounted a fierce campaign to oust Natsuno from the board of directors, accusing him of poor leadership, ineffective oversight, and a history of generating unnecessary public controversies.

This leadership crisis has been worsened by regulatory bodies. Just days before the former chairman filed his lawsuit, the Japan Fair Trade Commission (JFTC) recommended corrective actions against KADOKAWA. The JFTC revealed that the publisher had engaged in improper practices regarding its subcontractors, such as failing to properly disclose payment fees, clear deadlines, and working conditions. This regulatory rebuke has given Oasis Management extra leverage as they lobby institutional shareholders to vote for Natsuno’s removal at the Annual General Meeting on June 24.

The Fair Trade Commission's Warning

Compounding the corporate drama is the recent intervention by the Japan Fair Trade Commission (JFTC). The regulatory body's recommendations revealed that KADOKAWA failed to provide fair and transparent terms to its freelance and third-party contractors—who form the creative backbone of the company's manga, webtoon, and light novel publications. For an industry heavily dependent on stable relationships with creative talent, these findings are a severe reputational blow. Activist investors have quickly seized on this regulatory lapse as proof that current leadership is failing to manage both internal corporate culture and essential industry partnerships.

The Battle for KADOKAWA's Future: What Lies Ahead?

The convergence of a high-profile executive lawsuit, regulatory warnings, and a coordinated shareholder mutiny has pushed KADOKAWA into uncharted waters. If Oasis Management succeeds in rallying enough institutional votes to dismiss Takeshi Natsuno on June 24, it will mark a historic shift in Japanese corporate governance, signaling that even the most deeply entrenched media executives are no longer safe from shareholder activism. Conversely, if Natsuno retains his position, he will still have to lead a deeply divided company while managing a massive, ongoing legal battle against the former chairman who built much of the company's modern foundation.

Qnews24h insight

This legal offensive by former Chairman Tsuguhiko Kadokawa is a masterclass in corporate warfare, designed for maximum disruption rather than a quick courtroom victory. By filing the lawsuit on June 16—just over a week before the crucial June 24 Annual General Meeting—the former chairman has ensured that CEO Takeshi Natsuno's alleged leadership failures remain the central focus for voting shareholders. Even if Natsuno ultimately wins in court against the defamation allegations, the immediate negative publicity severely weakens his position in the eyes of institutional investors who are already on the fence regarding Oasis Management's proposals.

Moreover, the dual pressure of a defamation lawsuit and the Japan Fair Trade Commission’s recent contractor warnings highlights a deeper cultural rift within KADOKAWA. The company is trapped between traditional, family-associated management styles (represented by the legacy of the Kadokawa family name) and modern, globalized corporate governance demanded by foreign activist funds. Whichever faction triumphs on June 24, KADOKAWA will likely face a prolonged period of internal restructuring and reputational repair before it can regain institutional stability.

Sources

• Asahi Shimbun
• Anime Corner (https://animecorner.me/kadokawa-ceo-sued-for-200-million-yen-over-defamation-allegation-by-former-kadokawa-chairman/)