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Yokohama Casino Prospects Improve as Mayor Takeharu Yamanaka Steps Down

By jili tutorial · September 11, 2026

Yokohama Casino Prospects Improve as Mayor Takeharu Yamanaka Steps Down

Overview: A Political Shift Opens the Door for Casino Revival

Japan’s second-largest city, Yokohama, may re-enter the race for a casino license following the resignation of Mayor Takeharu Yamanaka. The mayor stepped down after a third-party investigation confirmed he had engaged in systematic workplace harassment, prompting a unanimous city council vote to accept his resignation. With Yamanaka—a staunch anti-casino figure—no longer in office, the likelihood of Yokohama renewing its pursuit of an integrated resort (IR) has significantly increased.

The city, a major port located just south of Tokyo, had initially been a leading contender in Japan’s first casino bidding round. However, Yamanaka’s election in 2021, on an explicitly anti-gambling platform, led to Yokohama withdrawing its candidacy. Now, a special mayoral election scheduled for October 18, 2026, could reshape the city’s stance on casino development and potentially open the door for a second formal bid.

Background: Japan’s Integrated Resort (IR) Framework

The 2018 Legislation and Three Licenses

In 2018, under then–Prime Minister Shinzo Abe, Japan passed legislation authorizing the construction of up to three integrated resort casinos. The law aimed to boost tourism and create a new economic sector, following the model of destinations like Singapore and Macau. Each license would allow a casino combined with hotels, convention centers, shopping, and entertainment facilities.

The First Bidding Round and MGM Osaka

Japan’s initial bidding process saw intense competition among global gaming operators. Ultimately, only one license was granted—to the MGM Osaka consortium. The other two licenses remained unallocated, partly because key candidate cities, including Yokohama, withdrew after political shifts.

Why Yokohama Was a Prime Candidate

Yokohama, with a population of over 3.7 million, offered a prime location near Tokyo, excellent transportation links, and a large port that could support international tourism. During the first bidding round, the city attracted strong interest from some of the world’s largest gaming companies, including:

The withdrawal of Sands and Wynn, combined with the COVID-19 pandemic’s impact on global travel, had already dimmed Yokohama’s prospects before Yamanaka took office. His election effectively ended the city’s participation.

The Yamanaka Era: Anti-Casino Stance and Resignation

A “Poison Apple” Campaign

Takeharu Yamanaka first won the mayoralty in 2021 on a platform firmly opposed to casino development. He famously referred to gambling as a “poison apple,” aligning with local concerns about addiction, crime, and social harm. Upon taking office, he immediately rescinded Yokohama’s eligibility as an IR candidate, a move that disappointed gaming operators but pleased anti-casino residents.

Re-election in 2025 and Then Resignation

Yamanaka was re-elected in August 2025, securing another term. However, within weeks, a scandal erupted. A whistleblower—later identified as a top official in the city’s human resources department—reported the mayor to government leaders for coercive behavior. A third-party law firm investigation, whose findings were published in July, concluded that Yamanaka routinely engaged in workplace harassment.

Details of the Harassment Probe

The investigation documented evidence that Yamanaka bullied and intimidated subordinates. According to the report, he regularly used derogatory language, calling employees “morons” and “human scum.” The findings painted a picture of a hostile work environment at the highest levels of city government.

Apology and Resignation

Yamanaka acknowledged the report, telling the media that he “deeply regrets and apologizes” for his “poor choice of words.” He announced plans to resign shortly after the report’s release. On September 7, the Yokohama City Council voted unanimously (84–0) to accept his resignation, clearing the way for a transitional leadership period.

The Special Election and Key Candidate

Election Date and Significance

A special mayoral election has been scheduled for October 18, 2026, to determine Yamanaka’s successor. This election is critical because the new mayor will have the authority to decide whether Yokohama re-enters the casino bidding process.

Atsumi Harasawa: The Early Frontrunner

On September 10, attorney Atsumi Harasawa, age 59, announced her candidacy. In her statement, she said, “I have decided to run in the Yokohama mayoral election to move our stagnant city administration forward and make this town overflowing with smiles.”

Harasawa brings a diverse professional background:

Political Alignment and Likely Support

Harasawa is expected to gain the backing of the Liberal Democratic Party (LDP), which controls Japan’s National Diet and is the party of Prime Minister Sanae Takaichi. The LDP was the driving force behind the 2018 casino legislation under Shinzo Abe. Prime Minister Takaichi has publicly embraced the idea of a second casino bidding round as a means to grow tourism and stimulate economic recovery.

Stance on Casinos: Undisclosed as Yet

To date, Harasawa has not publicly expressed an opinion on whether Yokohama should again explore the feasibility of an IR. Given the LDP’s pro-casino leanings, however, her candidacy is widely interpreted as a potential shift in the city’s posture. Observers will be watching her campaign statements closely for any signals regarding casino policy.

Implications for Yokohama’s Casino Prospects

Removing the Anti-Casino Barrier

Yamanaka’s resignation removes the most significant political obstacle to Yokohama’s casino pursuit. The anti-casino mayor had been a vocal opponent; his successor may either be neutral or openly supportive. With the LDP likely backing Harasawa, and the national government encouraging a second bidding round, the odds of Yokohama re-entering the race have improved markedly.

The Timing of a Second Bidding Round

Japan is expected to commence a second bidding process for the two remaining IR concessions sometime in 2027. If Yokohama’s new mayor signals interest quickly, the city could submit a formal proposal. The timeline is tight, but given that Yokohama already completed significant groundwork during the first round (including feasibility studies and site selection), it could move faster than other potential candidates.

Potential Operators and Competition

Should Yokohama