Meet Tadashi Yanai, the richest person in Japan and the founder of Uniqlo, who's worth nearly $25 billion and owns 2 golf courses in Hawaii

Meet Tadashi Yanai, the richest person in Japan and chairman of Fast Retailing.

The Japanese businessman heads Fast Retailing and is worth an estimated $24.8 billion. He's more than $6 billion richer than the second-richest person in Japan, Takemitsu Takizaki, according to Bloomberg.

Yanai's wealth comes from his position as president, chairman, and the largest shareholder of Fast Retailing, the largest clothing retailer in Asia. The 70-year-old billionaire holds a 46% stake in the company.

Fast Retailing is the parent company of Uniqlo and other brands including Theory, Comptoir des Cotonniers, and J Brand.

Fast Retailing has thousands of stores worldwide and reported a yearly revenue of $16.9 billion in August 2017, according to Bloomberg.

Yanai was born in southern Japan in 1949, the son of a clothing seller.

Yanai's father owned a men's clothing shop called Men's Shop Ogori Shoji. The store was on the first floor and the family lived above it. By the 1970s, the business had several locations.

After graduating from college in 1971, Yanai started selling men's clothing and kitchenware at a Jusco supermarket, but he quit after one year and started working for his father.

Yanai graduated from Waseda University with a degree in economics and politics.

Yanai said he didn't start out being very motivated to work.

"My preference was not to work my entire life, that's how I was," he told ABS-CBN. "My father demanded that I need to find work at Jusco. So regretfully I got a job."

He said he joined his father's business because he had nowhere else to go, but he actually ended up finding it fun.

In 1984 in Hiroshima, Yanai founded Unique Clothing Warehouse, which would later be shortened to Uniqlo.

A few years later, he changed the name of his father's clothing company to Fast Retailing.

The company grew quickly over the next several years. By 1996, Yanai had more than 200 stores across Japan.

Uniqlo's $15 fleece jacket was the brand's most popular product, with an estimated one in four Japanese people having bought one by 1998.

The Japanese billionaire, who is married with two children, lives in a 16,586-square-foot house in the woodlands outside of Tokyo.

The property, which includes a guard house, a driving range, and a separate thatched-roof teahouse, was estimated to be worth about $50 million in 2017. Yanai bought the land in an auction for $78 million in 2001.

Yanai also has a home – worth an estimated $74 million — in the ritzy Shibuya neighborhood of Tokyo.

Shibuya is an exclusive Tokyo neighborhood that government officials and CEOs call home, according to the Japan Times. Living there is "a symbol of status," Yukiko Takano of Sotheby's told the Times in 2014.

The billionaire is reportedly an avid golf player. He spends three weeks every summer playing in Hawaii, where he owns two golf courses that he bought for a combined $74.1 million.

Yanai bought the Plantation Golf Course in Hawaii from Maui Land & Pineapple for $50 million in 2009, according to Bloomberg. In 2010, he bought another course, Kapalua Bay, for $24.1 million.

Between 2013 and 2018, the expansion of Yanai's company meant that his net worth grew from $15.5 billion to $24 billion.

Fast Retailing is now the third-largest global clothing retailer, after H&M and Inditex, the parent company of Zara, according to MoneyWeek.

Today, Fast Retailing operates more than 2,000 Uniqlo stores in at least 20 countries — and that's not counting the group's other brands.

Uniqlo — Fast Retailing's most successful brand — has more than 2,000 stores globally, with 825 in Japan.

Only 50 of those are in the US, and the vast majority are scattered throughout Asian countries including Japan, China, Hong Kong, South Korea, and the Philippines.

Uniqlo is known for its relatively affordable, timeless basics. "Uniqlo isn't in the business of chasing trends," Gillian B. White wrote in The Atlantic.

"[Uniqlo's] staples—versatile black pants, reliable oxfords, crisp cotton socks — are available month after month, year after year," Write wrote.

Yanai himself has said Uniqlo's clothes are "geared to all types of people," according to MoneyWeek.

Yanai has made it clear he wants Fast Retailing to be the world's largest clothing retailer.

Yanai has always named H&M and Zara as Fast Retailing's biggest rivals. He told Forbes Asia in 2017 that his goal is to have the company's revenue up to $29 billion by 2020.

"Information and digital innovation will determine the winner," Yanai said. "And that's the area we are in."

In addition to its more than 2,000 global stores, Uniqlo has plans to open up its first stores in India, Vietnam, Denmark, and Italy later in 2019.

Uniqlo has pioneered the use of artificial intelligence in its stores to improve customers' shopping experience.

"Select stores have AI-powered UMood kiosks that show customers a variety of products and measures their reaction to the color and style through neurotransmitters," Blake Morgan wrote in Forbes. "Based on each person’s reactions, the kiosk then recommends products. Customers don’t even have to push a button; their brain signals are enough for the system to know how they feel about each item."

And last year Uniqlo launched GU Style Studio stores, fitting-only stores where customers can try on clothing and place orders online for later delivery, according to the Japan Times.

Yanai's two sons are both on Fast Retailing's board of directors.

"This means that corporate governance will function even when I'm absent," Yanai said when he announced their promotions in October 2018. "It does not mean that they will take charge of the company."

Yanai's sons, Kazumi Yanai and Koji Yanai, were both senior vice presidents at Fast Retailing before being promoted to the board, according to Nikkei Asian Review.

In 2017, Yanai told the Nikkei Asian Review that he would step down as president of Fast Retailing when he turned 70, but stay on as chairman.

Yanai turned 70 in February 2019 and so far has made no official announcement about leaving his role as president or about who will take his place.