In high school, she had a crush on someone, and before graduation, she secretly stuffed an unsigned love letter.
Until the boys were fighting, the love letter was thrown into the trash can as rubbish, and her young and ignorant love also faded away.
After many years of separation, we met again, and heard his voice slowly and fondly talking about the fact that he had found the silly girl who forgot to sign the love letter back then, and would make it official soon.
Purpose: Be a smart person