A restaurant in Sapporo, Japan is reportedly charging customers who don't finish their meal. Seafood restaurant, Hachikyo has started to charge diners a "donation" when they don't finish their plate at the specialty restaurant.

Blogger Midori Yokoyama from Gold Rush went to the restaurant and explained the process, reported Yahoo News. Particularly the rule applies to the dish, tsukko meshi, which is a bowl of rice topped with fresh salmon roe. "It is forbidden to leave even one grain of rice in your bowl. Customers who don't finish their tsukko meshi must give a donation," she said according to Yahoo.

It's rare that someone doesn't finish the delicious ikura, or salty salmon roe, dish.

"According to the explanation in the menu, the working conditions for fishermen are harsh and so dangerous that it's not unknown for lives to be lost. To show our gratitude and appreciation for the food they provide, it is forbidden to leave even one grain of rice in your bowl. Customers who do not finish their tsukko meshi must give a donation," she wrote on Rocket News.

A waitress at the restaurant told her that hardly anyone leaves the restaurant without finishing the meal. She wrote that first the waiter brings you a bowl of rice and then while you are waiting for the salmon roe to be put on the rice, another rule is that you can't touch the rice.

"After a short wait, the energetic staff called out, "Let's get started!" Then they began parceling out refills of salmon roe to the waiting customers, all the while calling out a kind of sea shanty that customers must repeat. This performance lent a real maritime authenticity to the experience, and it is something you will definitely want to see," she said on Rocket News.

For about $20 you can get the dish. The shop has been open eight years and they are opening a new location in Tokyo at the end of April.

"The way the Hachikyo restaurant limits food waste is by bringing their customers closer to the fisherman that catch their food. And staff members at the restaurant are trained to appreciate what they're serving by working on the fishing boats," added Jubbling.com.