• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
TechE-commerce

A 36-Year-Old Made $62 Million With Instant Web Flea Market

By
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Bloomberg
Bloomberg
Down Arrow Button Icon
December 4, 2017, 1:21 PM ET
E-commerce Entrepreneur and Founder of Marketplace App "Cash" Yusuke Mitsumoto Portrait
Yusuke Mitsumoto, founder of Cash in Tokyo on Nov. 30, 2017. Photograph by Kentaro Takahashi—Bloomberg/Getty ImagesKentaro Takahashi—Bloomberg via Getty Images

Yusuke Mitsumoto had a hunch: what if you paid people instantly for their used goods over the internet, with no guarantee that they would hand them over?

The 36 year-old e-commerce entrepreneur launched an app in June to test the idea. It worked better than he imagined; after 16 hours, he was stunned to discover he was on the hook for 360 million yen ($3.2 million) and shut the service down. A day later, truckloads of clothes and electronics gadgets started to arrive, with his startup’s employees forming a bucket line to move packages into his company’s tiny office in Tokyo.

All told, less than 1 in 10 second-hand-goods sellers didn’t deliver as promised. That was good enough for Mitsumoto, who relaunched the service, called Cash, in August as a new way to gather inventory for an online flea market. Total daily purchases are capped at 10 million yen, and are limited to smartphones, luxury handbags, watches, clothing and other specific items from a list of several thousand. Customers take a photo and are given a non-negotiable offer. Prices are set automatically based on data gleaned from other second-hand marketplaces and Cash makes money by reselling the goods.

“It was a social experiment,” said Mitsumoto, who started selling goods on the web in 1996. He later launched Stores.jp, Japan’s version of Shopify, which he sold and then bought back. “Of course, I believed that good people would outnumber the bad, but the question was by how much. That’s not something you can find out without trying.”

Second-hand sales are a big business in Japan and a market worth 1.6 trillion yen, according to the Reuse Business Journal. Bookoff Corp. has hundreds of stores that buy and sell everything from used books to video games and electronics. Yahoo Japan Corp. operates the country’s biggest online auction site. Mercari Inc. became Japan’s first startup to be valued at more than $1 billion with a smartphone app that made it easy for people to sell unwanted things to each other.

What Mitsumoto discovered was a way to remove the last bit of friction for sellers to get rid of stuff, unlocking value wasting away in people’s closets. He tapped into a market of people who lacked either the time or the patience to take nice pictures, write product descriptions and haggle with buyers.

He also knew that it was only a matter of time before bigger rivals followed with similar offerings. So when Mitsumoto got a Facebook message on Oct. 4 at 1:58 a.m., “Hi! This is Kameyama~! Sell Cash to me~! No?” he saw a way to stay ahead of the competition.

Keishi Kameyama is one of Japan’s richest people and the founder of DMM.com, a media and technology empire with $1.6 billion in revenue. Kameyama started with pornography but has grown his company into a vast collection of enterprises that spans a currency trading platform, video games, an online English school and solar farms. Mitsumoto agreed to sell Cash to DMM for 7 billion yen and continue running the business.

“For people doing internet businesses in Japan, DMM is a scary presence,” Mitsumoto said. “You never know when they may launch their own business and become a tough rival. I figured it’s best to at least meet.”

Indeed, a week after the deal was announced, Mercari launched an identical offering. The move by Cash proved that there was a need for such a service, said Takeo Iyo, the vice president in charge of Mercari Now.

Kameyama said his team recognized the potential of the market uncovered by Mitsumoto, but admits that the eye-popping valuation for a company of six people that’s not even one year old was also partly an “acquihire” —an acquisition based on hiring.

“Doing business on the internet is not all capital and equipment, you need a certain intuition, a design sense and ability to get a service going, ” Kameyama, 56, said in an interview. “I can also appreciate a bold play. There aren’t that many audacious people in this world.”

About the Author
By Bloomberg
See full bioRight Arrow Button Icon

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Tech

crew aboard artemis II
Innovationspace
‘It’s 13 minutes of things that have to go right’: Artemis II splashes down despite faulty heat shield
By Catherina GioinoApril 10, 2026
5 hours ago
The Navy confirmed an ‘abundant amount’ of Uncrustables when the Artemis II crew lands. Smucker’s just offered them a lifetime supply
PoliticsFood and drink
The Navy confirmed an ‘abundant amount’ of Uncrustables when the Artemis II crew lands. Smucker’s just offered them a lifetime supply
By Catherina GioinoApril 10, 2026
7 hours ago
Three people sit behind a desk and look at the phone screen of the person in the middle.
Future of WorkConsulting
Meet ‘trendslop,’ the new, AI-fueled scourge of workplace consultants everywhere
By Sasha RogelbergApril 10, 2026
7 hours ago
Amazon is still paying Jeff Bezos an $80,000 yearly salary—but $1.6 million for travel and security
Big TechCEO salaries and executive compensation
Amazon is still paying Jeff Bezos an $80,000 yearly salary—but $1.6 million for travel and security
By Marco Quiroz-GutierrezApril 10, 2026
9 hours ago
Kash Patel sits with his two fingers on lips
CybersecurityIran
First they went after medtech, then Kash Patel. Iranian hackers’ next target is likely ‘low-hanging fruit’ in water, energy, and tourism, experts say
By Jacqueline MunisApril 10, 2026
10 hours ago
scott bessent
CybersecurityFederal Reserve
The AI that found 27-year-old vulnerabilities no human ever caught before just forced an emergency meeting with every major Wall Street CEO
By Jake AngeloApril 10, 2026
11 hours ago

Most Popular

A Meta employee created a dashboard so coworkers can compete to be the company's No. 1 AI token user—and Zuckerberg doesn't even rank in the top 250
AI
A Meta employee created a dashboard so coworkers can compete to be the company's No. 1 AI token user—and Zuckerberg doesn't even rank in the top 250
By Fortune EditorsApril 9, 2026
2 days ago
The U.S. government is spending $88 billion a month in interest on national debt—equal to spending on defense and education combined
Economy
The U.S. government is spending $88 billion a month in interest on national debt—equal to spending on defense and education combined
By Fortune EditorsApril 9, 2026
2 days ago
Mark Cuban admits he made a mistake letting go of the Mavericks: 'I don't regret selling. I regret who I sold to'
Investing
Mark Cuban admits he made a mistake letting go of the Mavericks: 'I don't regret selling. I regret who I sold to'
By Fortune EditorsApril 9, 2026
2 days ago
Schools across America are quietly admitting that screens in classrooms made students worse off and are reversing years of tech-first policies
Innovation
Schools across America are quietly admitting that screens in classrooms made students worse off and are reversing years of tech-first policies
By Fortune EditorsApril 10, 2026
21 hours ago
Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
Success
Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
By Fortune EditorsApril 10, 2026
13 hours ago
'I hate working 5 days': Zoom CEO says traditional work schedules are becoming obsolete—and predicts a 3-day workweek by 2031
Success
'I hate working 5 days': Zoom CEO says traditional work schedules are becoming obsolete—and predicts a 3-day workweek by 2031
By Fortune EditorsApril 9, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.