The story of Genki Sushi began with the vision of a 24-year-old Japanese sushi chef, Fumio Saito. Saito dreamed of creating a modern sushi restaurant with an unusual feature known as a 'kaiten' (literally translated as 'revolving'). 

In December 1968, he created the concept of 'kaiten sushi' and pioneered the use of a revolving conveyor belt to serve sushi, combining serving traditional sushi with modern technology.

The new concept caught on fast in Japan and appealed widely to the masses. The success of kaiten sushi saw the opening of more outlets in the prefecture of Tochiigi in the Kanto region and mainly in a town called Utsunomiya. Saito's commitment to serve quality sushi at affordable prices brought sushi within the reach of everyone. Not long after, kaiten sushi became a household name in the Kanto region of Japan.

In 1990, Genki Sushi Co. Ltd was established and in 1991, listed on the Tokyo Stock Exchange. With its dedication to freshness, the company quickly gained public support and successfully expanded further throughout Japan.

Genki Sushi's move into the international arena in 1992 marked a new era for the company. Regional expansion was rapid with Genki Sushi outlets opening in Hawaii, Singapore, Hong Kong and subsequently in Malaysia and Taiwan. In March 1995, the first Genki Sushi opened in Hong Kong. Today, Genki Sushi operates a total of 40 outlets in Hong Kong.