The summer of sixteen, an accident
"Hey classmate, can I lend you an umbrella... What's your name?"
"No need to pay it back"
….
Many years later, they held an umbrella together in the snow
This time, I am no longer an ordinary classmate
….
Today we are drenched in snow together, and in this life we will grow old together
Concept: The female protagonist grows up through various experiences and the male protagonist both reaches the top