C1897 I'm the Original Female Lead(50)

It's a joke about the engagement between the original owner and Shin.

When they were young, Jiang Lu saved Xu Zhen's father. The two of them appreciated each other and even promised to be sworn brothers when they gave birth to a son in the future.

If it was a man and a woman, then they would decide on the marriage.

Both of them left behind tokens. They had not seen each other for many years