A girl promised a boy younger than her since she was a child: "We will meet again on May 10th in 10 years. I hope you won't cry again then!" From then on, the little boy fell in love with her, a girl two years older than herself. When he grew up, the two met in the same place, but when he saw the girl talking to another boy, he thought that the girl had forgotten the agreement, so he began to take revenge (the boy was a fussy guy), and the boy stepped on every broken heart to achieve his goal. In the end, the girl's choice was not the boy. The reason was that the boy was just a shadow of the person she liked when she was a child, so the girl didn't want to see him cry. Boy, after hearing the reason, he was not so painful, but chose to use time to dull the memory of that time.