As the saying goes, you are what you eat – and by that measure, the chopsticks you eat with can also say a lot about your personality.

At Ginza Natsuno Honten in Tokyo’s Ginza district, Toshiki Sato manages a chopstick specialty store that sells a dizzying array of more than 2,600 types of chopsticks of all lengths, colors and designs.

After graduating from college, Sato first worked as a cram school teacher before joining BioNet Co., the company that manages Ginza Natsu no. He was put in charge of the main store in 2011 and now develops new products by visiting chopstick manufacturers nationwide. At the shop, he also sharpens chopsticks that have been broken or rounded off.