When students graduate, they will seize the opportunity to express their love to their favorite objects. ...

Especially girls! If you can get the boy's second button when you confess, then you have a great chance of success!

Actually, it's just some little wishes of girls. ...

As a souvenir, my unrequited love is over. Whatever the result, the second button is full of good memories, isn't it?

Furthermore, the legend of the "second button" from Japan is probably: a pair of lovers and a man are about to go to a distant place to seek their ideals and start a career. When leaving, the woman took off the second button of the man's coat and made a necklace with red thread and hung it on her chest. A few years later, the man returned to China with a successful career, and did not forget that the woman went back to her hometown to get married. The woman also stayed at home and never got married. The two never gave up, which made the eternal love of later generations.

This later evolved into a custom, which spread through animation and idol drama. When boys and girls leave (graduation ceremony is a student's day), girls will ask the boy they like for his second button, and the boy will take it off and give it to the goddess in his heart, praying for eternal love. Many people will also take this opportunity to express their love to their sweetheart.

Why the second button? Because the second button is eccentric recently, it represents the heart, and the beloved hangs the "heart" you gave her on her chest, which is her heart. Isn't that soul mate? Two hearts together represent eternal love.