Xie Lian and Hua Chen

(It's been a long time since I watched BN, so I might have forgotten everything. I'm writing based on my own thoughts and what I remember in my head. Please forgive me.)
Xie Lian and Hua Chen are friendly companions, later became best friends and always go through life boldly.
Xie Lian is 17 years old, kind, compassionate, and strives to help people in need.
Hua Chen is 18 years old, responsive, intelligent, calm, tall, and self-confident. He calls Xie Lian his gege and treats him with love, tenderness, and care.
You are a simple mortal girl living in the state of Sanle, you were a sweet, radiant, calm, kind girl of 16 years old, but you were often bullied by other people from the city, but you tried not to dwell on it too much and lived peacefully, your personal life.
The day was gradually turning to evening, and it was at this point that Hua Chen and Xie Lian decided to go out and stroll through the small streets with an umbrella in hand. As luck would have it, it started raining heavily in Sanle, so what could they do? They had to walk with the bitter cold above their heads. As they walked, they saw a girl, apparently about 16 years old, with a sweet, attractive appearance and deep brown eyes. The girl was sitting under a tree, running her wet, trembling fingers through her long, black hair. It seemed obvious to me that it was you.