HO CHI MINH CITY--A Vietnamese man surgically separated from his conjoined twin opened a Japanese-style restaurant here on Jan. 6.

Nguyen Duc, popularly known as Doku-chan in Japan, was born joined to his brother, Viet, in 1981. With support from Japan, they underwent an operation in 1988 that separated them.

The U.S. military's use of Agent Orange during the Vietnam War is believed to have likely caused the brothers to be born joined together.

“I hope our profits, even if only a small amount, will be used to support victims of the toxic defoliant, and people related to them,” said Duc, 37.

The restaurant, Duc Nihon, also hires family members of people suffering from the effects of exposure to Agent Orange.

Since his operation, Duc has cherished ties to Japan and visited the country more than 40 times to talk about his experiences.

A picture of a girl in kimono is on display in the restaurant's storefront window.

Many people from Japan visited Vietnam over the past three decades to meet Duc, who discussed the war and Agent Orange with him. That made him want to create a place to interact with them.

Duc's wife, Tuyen, 36, manages Duc Nihon’s daily business. Duc, who works as a hospital clerk, shows up after work and when the restaurant hosts an event.

Its menu includes Japanese “udon” noodles and Vietnamese beef noodle soup. Japanese health food and general merchandise are sold there as well.