Stop updating.
The Si Lu family were family friends, but Si Qingmu and Lu Chuli didn't know each other. We met once by chance when we were young. After that, we never saw each other again, but I never expected...
"Since our story begins with you, it must also end with you."
Ending: tentatively decided to be BE
Note: Stop updating
Concept: When he was eighteen years old, he met her when she was nineteen years old