His decision rocked Japanese football, coming just weeks after the nation's exit from the Brazil World Cup in 2006.
However, the former Japan footballer of the year and three-time Ballon d'Or nominee realised after hanging up his boots that he had an alarming lack of knowledge about his home country.
Nakata had left Japan aged 21 to pursue his career in Europe, and insisted he needed to educate himself to "become a better Japanese person."
He told in 2018: "I played because I loved [it], but I was losing a bit of passion for football.
"My people came to stop me but I said: ‘Please cut my contract. I don’t need any money anymore, just let me leave.’
"All my life I just played football, basically. Every country I went, people asked me about Japan but I didn’t know anything about it.
"That’s a part of my life, so I need to become a better Japanese person."
During his deep dive into Japan's culture, which took over seven years to complete, Nakata visited all 47 of Japan's prefectures - equivalent to an English county.
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His mission yielded the desired results, with Nakata finding a particular interest in sake, otherwise known as Japanese rice wine, and turning it into a business with his own label "N".