Serkan Toto of CrunchGear informs us that this is a Japanese-language video of a Chinese vending machine that sells live crabs:
This model is located in a subway station in Nanjing, China, and keeps the crabs at 5°C at all times. In other words, the crabs inside are alive, “hibernating” in a frozen state.
A sign in front of the machine promises 100% customer satisfaction: if buyers get a dead crab, the maker (a Chinese company based in Nanjing whose name I couldn’t decipher) promises they’ll get three crabs for free.
via CrunchGear