Five-year agreement...
Five years ago, on Jiang Zuo's birthday, the two of them made an agreement to receive the certificate on that day five years later.
But Jian Yi is missing
Jiang Zhu went abroad. When he came back, he saw the person he thought about day and night.
Jian Yi, it's been five years, it's time for us to fulfill our promise
Intention: Fight for dreams and love, change ourselves for each other, and we are sorry for love if we are not together yet