First: "In Japan, people have regarded the' five-yuan coin' as an auspicious mascot since ancient times. Because in Japanese, the pronunciation of' five yuan' and' decree by destiny' is very similar. Moreover, a coin with a hole in the middle also means' full of hope for the future'. "

Second; This comes from a story:

The girl's friend gave her a Japanese yen from 5 yuan. A friend told the girl that the five-yuan yen would bring her good luck in love. The girl took five dollars with her and didn't deliberately remember it. A month or two later, by some coincidence, the girl's colleague introduced her to a boy. When they first met, they both liked each other.

We have been together since we met for the second time. When they went to the convenience store to buy things together, the girl remembered five dollars a day, and was very excited to show it to the boy and tell him the origin of the coin. The boy was stunned. The boy took out an identical five-dollar coin and told the girl that his five-dollar coin was given to him by an old uncle in a shrine when he arrived in Japan. ? The old uncle said that girls would come to him with the same five-yuan yen in the future.

This is the story of five yen ...?

Five yuan means "becoming attached". When a man or a woman puts a five-dollar bill in her bag and gives it to the other person, it means that she is interested in the other person, but she is embarrassed to ask.

Extended data:

Coins (coins; Coins; Hard currency; Cash; Pieces), that is, money made of metal. It has a history of thousands of years in China. The earliest metal coin is the Shang Dynasty Baode copper shell, which has been more than 3,000 years.

Metal coins have the advantages of convenient use, wear resistance and long circulation life. In addition to its own monetary function, it also has a high artistic appreciation and value preservation function.

Japanese coins

The five-yen copper coin was issued on 1949, replacing the original five-yen copper coin without a small hole in the middle. Because it is difficult to distinguish the five-yen copper coins issued at that time from the one-yen copper coins, the five-yen copper coins were changed into punched coins. Its diameter is 22.0mm, its weight is 3.75g g, and its material is brass, that is, an alloy containing 60% copper and 40% zinc.

The one-yen aluminum coin was introduced in 1955, replacing the previous one-yen brass coin. One yen aluminum coin is the smallest monetary unit issued so far, with a diameter of 20.00mm, a weight of 1.00g g and a material of 100% aluminum, which is characterized by light weight. The specific gravity of aluminum is 2.7, and that of water is 1.0. Although aluminum is heavier than water, it won't sink even if it is put on the water gently due to surface tension.

10 yen copper coin was issued in 195 1, with a diameter of 23.5 mm and a weight of 4.50 grams, and made of bronze. That is, an alloy containing 95% copper, 4% zinc and 1% tin.

References:

Coin-Baidu Encyclopedia