"What needed to be done is done" — The Meaning Behind the Resignation Announcement
On December 23, 2025, LY Corporation officially announced that Representative Director and Chairman Kentaro Kawabe had submitted "a request to step down from his position as a director of the Company upon the expiration of his term at the conclusion of the 31st Ordinary General Meeting of Shareholders scheduled to be held in June 2026," and that the Company had accepted this request. It was also disclosed that he will assume the position of advisor to the Company following his retirement.
On his own X account (formerly Twitter, handle @dennotai, with over 150,000 followers), Kawabe stated his reasons for stepping down: "With the amicable merger of LINE Corporation and Yahoo Japan Corporation, and having seen PayPay Corporation—which I nurtured with great care—through to profitability, the things I 'needed to do' as a manager of this company have largely been accomplished." Regarding the successor board structure, he merely stated that "following deliberations by the Nomination and Compensation Committee and the Board of Directors, we will announce details in due course," and as of May 25, 2026, when this article was written, no specific successor chairman has been disclosed. Takeshi Idezawa will continue to serve as Representative Director, President and CEO. LY Corporation itself also announced a renewal of its management and executive structure effective April 1, 2026, appointing Mitsunobu Yoshizawa as Senior Executive Officer in the role of AI Agent SBU Lead for the Media and Search Domain, and Shohei Futaki as Senior Executive Officer and CPO of the Corporate Business Domain, advancing a transition to an AI-driven organizational structure that looks beyond Kawabe's retirement.
Media Innovation magazine analyzed the retirement decision as "a turning point in management with PayPay's move into profitability," evaluating it as "exquisite timing for handing over the baton, as the company emerges from a temporary period of stagnant performance." Indeed, in its consolidated financial results for the fiscal year ending March 2026, LY Corporation posted revenue of 2,036.3 billion yen (up 6.2% year-on-year), operating income of 341.3 billion yen (up 8.3%), and adjusted EBITDA of 496.6 billion yen (up 5.5%), achieving record-high performance for the sixth consecutive fiscal year. It is a retirement that embodies the aesthetic of stepping off the rails at the very best point for a manager.
Shibuya Ebisu Entrepreneur Family and 16 Years at Aoyama Gakuin
Kentaro Kawabe was born on October 19, 1974, in Ebisu, Shibuya Ward, Tokyo. As of the time of writing, he is 51 years old. His grandfather was a businessman who ran a driving school and a taxi company, among other ventures, and as he himself later said, "During my days in the elementary division, I learned the basic principle of business that 'excessive profit is wrong,'" his sense for commerce was something he acquired firsthand from early childhood.
In terms of education, he spent 16 consecutive years within the same school system, from Aoyama Gakuin Elementary School through Aoyama Gakuin Junior High and High School, and on to the Faculty of Law at Aoyama Gakuin University, graduating from the university's Faculty of Law in March 1998. In a donor interview, Aoyama Gakuin touched on how, through its Christian-based education, Kawabe had come to "naturally embody habits such as worship and offering," and Kawabe himself explained his motivation for donating to his alma mater by saying, "I want many people of the next generation to receive the same fine education that I myself received." The unique lifestyle he would later adopt—"wearing three pairs of straw sandals as a business executive, a hunter, and a fisherman"—as well as his self-reliant attitude of personally renovating an all-but-derelict company retreat in Tateyama through DIY, are all underpinned by the motto cultivated during his Aoyama Gakuin years: "Do interesting things with interesting people."
All-Nighters with "Romance of the Three Kingdoms" in Junior High — The Boyhood Business Sense Witnessed by Friend Reo Maeshima
Mr. Kawabe was a classmate of Reo Maeshima, the CEO of Lutia Inc., the company that develops and operates this newsify, during their days at Aoyama Gakuin Junior High School. In their junior high days, they were friends who would gather at each other's houses and pull all-nighters playing Koei's (now Koei Tecmo Games) historical simulation game "Romance of the Three Kingdoms."
Mr. Maeshima reminisces about those days, saying, "I was the type who emphasized domestic affairs and tended to focus on solidifying defenses, but Mr. Kawabe had a good balance between offense and defense, and even back then he showed a sense for management." "Romance of the Three Kingdoms" is a strategy game that requires integrated judgment across territorial management, talent recruitment, diplomacy, and military affairs, and the judgment to simultaneously optimize offense and defense without leaning solely on domestic affairs seems like a prototype of the management style Mr. Kawabe would later demonstrate — going on the offensive in the niche of Yahoo! Mobile while shoring up GyaO's defenses to turn it profitable, and launching the massive offensive of PayPay while bringing ZOZO and LINE into the fold through acquisition and integration. The testimony of a classmate who could already read his "offense-defense balance" at the junior high stage is valuable evidence that Mr. Kawabe possessed an innate temperament for management.
At the cultural festival in his third year of high school, the "Aoyama Samba Team" was formed across all three grade levels, with Mr. Kawabe at its center. This continued into his university years and is considered an important project that brought together the comrades who would later become core members of Dennotai. His qualities as a connecting node bridging networks of classmates and alumni were already evident here from an early stage.
From "Aoyama Samba Team" to "Dennō Team" — The Birth of a Student Entrepreneur
In November 1995, while in his third year at Aoyama Gakuin University, Mr. Kawabe founded "Dennotai." That same year marked a historic turning point: the Japanese version of Windows 95 was released on November 23, and the internet began its full-scale popularization in Japan. In a lecture at Keio Business School, Mr. Kawabe recalled the impact of that time, saying, "I was astonished that I could transmit information by myself," and his intuition about an "era in which individuals can broadcast" sparked by Windows 95 became the driving force behind his entrepreneurship.
The early Dennotai was centered on contract work, with the founder himself describing the start as, "We began as a PC installation business, and gradually moved on to things like building corporate websites." While the company built a track record with projects such as creating the official website of the Japan Sumo Association, he also sensed the limits of the contract business early on, and in 1997 traveled alone to Silicon Valley to scout the scene. There, he picked up the insight that "mobile phones and the internet will converge, and this will likely become a market larger than PCs," and he boldly pivoted the business model from contract work to mobile-oriented software and services. At a time when even in Silicon Valley "mobile internet" was not yet a mainstream topic of discussion, the fact that a 22-year-old Japanese student bet on it was an extraordinarily sharp display of venture instinct.
In September 1999, Mr. Kawabe was appointed President and Representative Director of Dennotai Inc. That December, he also founded a separate company, "P.I.M. (Pi-Ai-Emu)." P.I.M. was positioned as an operating company specializing in the mobile domain, and it would later become the core of the business when it joined forces with Yahoo.
The 5.4 Billion Yen Sale to Yahoo and the Run-Up to the Mobile Era
On June 8, 2000, it was announced that Yahoo and PIM (which had merged with Dennotai) would merge. On July 1 of the same year, they moved to Yahoo's office in Omotesando, and the formal merger took place in August of that year. The acquisition price was reportedly 5.4 billion yen (at the time, it was the tail end of the internet bubble, and for a young venture that had achieved rapid growth in the five years since its founding, this was an exceptional valuation). On X, in "Kawabe's Entrepreneurial Memoir 12," Mr. Kawabe looked back on this merger as "a bittersweet exit born of immaturity." His own explanation of the motivation for the sale was that "I didn't want to cause any further trouble to those around me over matters originating from Dennotai, and I also thought that by leveraging Yahoo's power, we could deliver mobile services to a greater number of people."
Having joined Yahoo through the merger, Mr. Kawabe took charge of emerging businesses as the producer in charge of Yahoo! Mobile, at a time when Yahoo had fewer than 200 employees and revenue of less than 10 billion yen. As he himself stated in a KBS lecture, "Now we have just under 30,000 employees, and revenue is approaching 2 trillion yen," succinctly expressing a quarter century of growth. It can also be inferred that the personal assets brought about by the sale of the company became the financial wherewithal that later made possible his "three pairs of straw sandals" — the Tateyama DIY base and his hunting and fishing gear among them.
Yahoo Japan's Corporate Culture Shift — From a US Yahoo Subsidiary to a SoftBank Subsidiary
What matters here is the unique positioning of Yahoo! JAPAN as a company at the time Mr. Kawabe joined in 2000. Yahoo! JAPAN was established in January 1996 as a joint venture between Yahoo! Inc. of the United States and SoftBank. The initial equity ratio was SoftBank 60% and U.S. Yahoo! 40%. The president was Masahiro Inoue, who came from SoftBank, but the company was under the strong influence of U.S. Yahoo! across all dimensions—brand, technology, and management philosophy—and even in the consciousness of its employees, the identity that "we are ultimately the Japanese subsidiary of U.S. Yahoo!" was deeply ingrained. Inoue achieved 16 consecutive years of revenue and profit growth from 1996 to 2012, was known as one of the few executives who could say "No" even to Masayoshi Son, and cultivated a "Yahoo! Japan culture" that translated U.S. Yahoo!'s liberal and flat culture into a Japanese style.
This atmosphere was significantly shaken in 2012, which overlapped with the wave of smartphone proliferation. That year, Inoue stepped down, and Manabu Miyasaka, then 44 years old, took office as president. Miyasaka championed "high-speed management," declared a smartphone-first policy, and thoroughly overturned the PC-era organization. Under this Miyasaka regime, Mr. Kawabe was appointed COO Executive Officer and Head of the Media Business Group in April 2012, and Vice President COO and Head of the Media Service Company in July of the same year. Mr. Kawabe is an executive with a strong SoftBank-affiliated tint, and is someone who has clearly shown respect for Masayoshi Son's "magnitude of scale" and "vision and ability to bring people on board." Between the old Yahoo culture with its strong U.S. Yahoo! tint and the reborn Yahoo! JAPAN strengthening its SoftBank tint, Mr. Kawabe had secured a rare position capable of bridging the two.
The decisive turning point came with the events of June 2017, when U.S. Yahoo! Inc. sold its business to Verizon and changed its corporate name to Altaba, and September 2018, when Altaba sold all of its Japanese Yahoo shares it held for 4.3 billion dollars (approximately 480 billion yen at the exchange rate at the time). As a result, SoftBank became the largest shareholder holding 48.2%, and Yahoo! JAPAN became a full member of the SoftBank conglomerate in terms of both capital and brand. The dissolution of the relationship with U.S. Yahoo! proceeded in step with the handover of the presidency from Miyasaka to Mr. Kawabe (in June 2018, Mr. Kawabe took office as Representative Director, President, and CEO), and amid the trend of smartphones becoming mainstream, it can be summarized as the presidency that Mr. Kawabe won as the leader of a new era within the major current of Japan's internet history—a shift from "Japanese subsidiary under the U.S. Yahoo! umbrella" to "Japan IT integrated entity under the SoftBank umbrella."
GyaO Rebuild and the Shift to Smartphones — Proof from His Vice Presidency
In the process leading up to his appointment as president, Mr. Kawabe demonstrated his mettle as a business executive through his role as President and CEO of GyaO Corporation, a position he assumed in May 2009. Since its days under USEN, GyaO had been carrying annual deficits of around 10 billion yen, and after coming under Yahoo's umbrella, Mr. Kawabe was dispatched as the turnaround leader. According to him, he succeeded in turning the company profitable in just two years. By producing "numbers that could be written up as a success story," Mr. Kawabe paved his way to key positions within Yahoo itself.
From 2012, after assuming the role of Vice President, through 2018, just before becoming President, he spearheaded Yahoo's shift to smartphones. At the time, roughly three years had passed since the iPhone's launch in Japan, and globally the world was entering an era in which smartphones were taking center stage, yet Yahoo—a champion of the PC era—had been slow to adapt to mobile. Under Mr. Miyasaka, Mr. Kawabe declared internally that the company would be "smartphone-first," and implemented radical mindset reforms such as establishing a "smartphone-only day" within the company. As a result, in the approximately one year leading up to Mr. Kawabe becoming president, the number of unique browsers accessing Yahoo via smartphones grew roughly 1.8-fold, from 50 million to 90 million. In an interview with the person who was then LinkedIn's representative in Japan, Mr. Kawabe was praised as having "led Yahoo's shift to smartphones," and he established his external reputation as the driving force behind rebooting a PC-era media company into a mobile-era services company.
Three "Big Moves" After Becoming President — PayPay, ZOZO, and LINE
Since assuming the presidency in June 2018, the Kawabe regime has, true to his own words of "looking ten years ahead and setting up big moves," executed three major management decisions in rapid succession.
The first big move was the launch of PayPay. Started in October 2018 as a joint venture between SoftBank and Yahoo, PayPay swept Japan's cashless payment market in one stroke through unprecedented marketing offensives such as the "We're Giving Away 10 Billion Yen Campaign," inherited from Masayoshi Son's playbook. As Kawabe himself looked back, saying, "The process of taking it from zero to 10 trillion really felt like, 'It's been a while since I've truly done a startup,'" it was a business in which he, despite being a Yahoo employee, threw himself in with the sensibility of a startup founder. In the April–June 2024 quarter, it finally achieved profitability on a consolidated basis, and by the fiscal year ending March 2026, PayPay's consolidated GMV has grown to 4.5 trillion yen (+24% year-on-year), with sales up 22.1%.
The second big move was the acquisition of ZOZO in September 2019. Yahoo conducted a TOB at 2,620 yen per share and acquired 50.1%. The total purchase amount reached 400.7 billion yen (the theoretical maximum had all shares been acquired), making it the largest M&A deal in Yahoo's history at the time. The episode in which Yusaku Maezawa stepped down as president, and Masayoshi Son introduced Maezawa to Kawabe to broker the acquisition negotiations, has been widely reported. The post-acquisition ZOZO continues to be positioned as the centerpiece of PayPay Mall / LINE Yahoo Shopping, with ongoing synergies through integration with ZOZOTOWN.
The third big move was the business integration with LINE, basically agreed upon in November 2019 and completed in March 2021. With this, Z Holdings (as it was then known) became a massive internet conglomerate encompassing Yahoo, LINE, PayPay, ZOZO, Ikyu, Askul, Demae-can, and more, and Kawabe took on the role of President and Co-CEO, launching a Co-CEO structure together with Takeshi Idezawa, who had been involved in LINE's management since its founding period. The two Co-CEOs are said to have held weekly management meetings lasting seven hours, aiming to achieve both quality and speed in decision-making. The Nikkei newspaper at the time described Kawabe's management approach as "looking ten years ahead and setting up big moves," and the triple play of PayPay, ZOZO, and LINE was precisely the embodiment of those "big moves."
The Birth of LY Corporation and the NAVER Issue That Cast a Shadow
In April 2023, Mr. Kawabe was appointed Representative Director and Chairman of Z Holdings, with the role of President and CEO consolidated under Mr. Idezawa. On October 1 of the same year, the five companies Z Holdings, Yahoo, LINE, Z Entertainment, and Z Data merged to form "LINE Yahoo Corporation" (English name: LY Corporation). The parent company A Holdings is a joint venture owned 50-50 by SoftBank and South Korea's NAVER, and it holds 63.6% of LY Corporation.
However, the newly formed LINE Yahoo faced serious information security incidents immediately after its launch. In October 2023, it was discovered that approximately 440,000 records (later revised to over 510,000) of personal information had potentially been leaked due to a cyberattack. In February 2024, the leak of approximately 57,000 records of former LINE employee information also came to light. On March 5, 2024, the Ministry of Internal Affairs and Communications issued administrative guidance to LINE Yahoo demanding the protection of the secrecy of communications and the assurance of cybersecurity, requesting the separation of systems from South Korea's NAVER—the parent company's 50% shareholder—and the strengthening of security governance across the entire group. The Personal Information Protection Commission also issued administrative guidance on the 28th of the same month. Mr. Kawabe, President Idezawa, and others announced on March 6, 2024 that they would voluntarily return a portion of their executive compensation.
Toyo Keizai Online sharply criticized the situation, stating that "even the Ministry of Internal Affairs and Communications was exasperated by the 'unchanging corporate culture,'" and reported that LINE Yahoo had been pushed to the stage of reviewing its capital relationship itself. NAVER indicated that it would consider "all possibilities," including the sale of its A Holdings stake to SoftBank, but as of May 2026 at the time of this writing, a final review of the capital relationship has yet to be reached. Behind the official comment explaining the reason for Mr. Kawabe's departure with the logic that "what needed to be done has been done," it should be read as also containing the implication that "the next management challenges, including this Japan-Korea capital relationship issue, will be entrusted to his successors."
The AI Solopreneur Manifesto Read Through a Silicon Valley VC's Lens
Kawabe's post-resignation vision resonates head-on with the most cutting-edge theme currently emerging in Silicon Valley. After stepping down, Kawabe declared that he would "start a company that is essentially just me and AI, a two-member firm," and stated, "Rather than reskilling, I want to prioritize unlearning—I want to shift, with a sense almost of having been reincarnated, into taking on challenges from scratch in an AI-driven society." In a follow-up report in February 2026, the Nikkei quoted Kawabe as saying, "Human-centric is inefficient," and "Compared to businesses built around humans, the productivity of AI-centric businesses will inevitably be higher. The CPU keeps running 24 hours a day, 365 days a year."
These remarks become all the more suggestive when placed within the current of Silicon Valley discourse. OpenAI CEO Sam Altman, in a conversation with Reddit co-founder Alexis Ohanian, said, "My group of fellow tech CEOs has a running bet on when the world's first one-person billion-dollar company will emerge," predicting that "one person and 10,000 GPUs" will be the shape of the next company. Major Silicon Valley VCs are moving in the same direction: Sequoia Capital has begun incorporating "agentic leverage" (the capacity for small teams to produce massive results through AI orchestration) into its underwriting criteria, and together with a16z, as of January 2026, 65% of U.S. VC deal value is flowing into AI-centric deals. Anysphere, which operates the AI development editor Cursor, reached a valuation of $29.3 billion (on the order of ¥4.4 trillion) at the end of 2025, becoming a symbol of an era in which a tiny team can manage enterprise systems that previously required dozens of engineers. According to a Scalable.news survey from early 2026, solo-founded startups have come to account for 36.3% of new ventures.
Kawabe's choice—to descend, from the very pinnacle of one of Japan's largest internet companies as chairman of LINE Yahoo, straight into a "one-person company with AI agents as employees"—is unprecedented as a life design for a Japanese executive, and embodies the quintessentially Silicon Valley logic of the "second act." Silicon Valley VCs have a culture that places enormous weight on a founder's track record as a "serial entrepreneur" and on the domain of their next challenge, and Kawabe will be tracing an exceptionally unique three-layered career arc: student entrepreneurship (Dennotai) → big-company management (Yahoo / LINE Yahoo) → personal AI entrepreneurship (AI solopreneur). This is territory that even Masayoshi Son has not ventured into within Japan's IT industry, and it is highly likely to become an experiment in which Japanese society witnesses, for the first time, the image of an executive who leverages cutting-edge AI models from Anthropic, OpenAI, Google DeepMind, and others as "the equivalent of 10,000 GPUs of leverage wielded by an individual."
Post-Resignation Developments — Media Assessments and Upcoming Milestones
The editorial tone of major domestic media outlets has broadly converged on a view that frames this as both an "exquisitely timed resignation" and a "symbolic baton pass to the next generation." The Nikkei reported the story with front-page-level treatment under the headline "Starting Up Solo with an AI Partner: LINE Yahoo Chairman Kawabe to Resign Next Month — Higher Productivity Than Human-Centered Approach," ITmedia characterized it with the phrase "I will cleanly forget my experience with the internet," and Impress Watch ran with the headline "What Needed to Be Done Is Done." Among overseas media, mashdigi (Taiwan) reported, "Kentaro Kawabe, chairman of LY Corporation, who spearheaded the merger of LINE and Yahoo Japan, will step down in 2026 to pursue an AI startup," clearly framing him as the driving force behind the Yahoo Japan integration.
From a Silicon Valley perspective, there are several upcoming milestones worth tracking. First, the formal resignation at the 31st Annual General Meeting of Shareholders, scheduled for mid-June 2026, and the appointment of his successor as chairman to be announced at that time. Whether President Idezawa will concurrently assume the role of Representative Director and Chairman, or whether a new chairman will be dispatched from either SoftBank Group or NAVER, will serve as a critical indicator for the future of the A Holdings structure. Second, the timing of the announcement of the business domain and initial products for the "two-person company of AI and myself" that Kawabe himself is launching. It is generally expected that some form of announcement will be made between the second half of 2026 and early 2027. Third, the progress of PayPay's standalone Initial Public Offering (IPO). Multiple media outlets have reported that an IPO has come into realistic view following PayPay's transition to profitability, and the timing at which SoftBank and LINE Yahoo will conduct the offering has become a focal point of market interest. Fourth, how LINE Yahoo will ultimately resolve its capital relationship with NAVER. More than two years have passed since the administrative guidance from the Ministry of Internal Affairs and Communications, and some form of substantive progress is anticipated under the new structure following Kawabe's resignation.
A 51-year-old entrepreneur who spent 26 years at Yahoo / LINE Yahoo, 14 of them as a top executive, has played out a three-act drama of Japanese internet history — moving from under Yahoo! Inc.'s wing, to SoftBank's, and on through the LINE business integration — and is now once again throwing himself onto the startup frontier from scratch with a "two-person company of AI and myself." That trajectory will likely be recounted for a long time to come as a symbolic story of 2026, the year in which Japan's tech industry transitions into an AI-driven society. A boy with a well-balanced sense of offense and defense, who once stayed up all night playing *Romance of the Three Kingdoms* at a friend's house in junior high, is now standing — a quarter-century later — before the start screen of the newest game of all.