Japan is an island country, surrounded by the sea, and other resources are not particularly rich except fish. Fishermen have lived by fishing for generations, and fishing is a major industry in Japan. The price of food in Japan is high, but the price of fish is relatively cheap. Japan's coastal areas are rich in fishery resources, and the fishing amount ranks first in the world.

A rare creature restaurant named "Treasure House" in Japan is the only restaurant in Japan that sells Mexican giant salamanders. The Mexican salamanders advertised in this restaurant did not take any hormone drugs to promote growth. They were all farmed edible salamanders. Usually, the boss will fry this rare biological food, which has become the specialty of this restaurant.

Mexican salamander has amazing regeneration ability, which can not only grow new limbs, but also regenerate important organs such as brain and eyes. Therefore, Mexican salamander is the research object of many researchers, but this precious and lovely creature can't escape from human mouth.