Introduction:
On the first day of her senior year of high school, literary girl Sang Mo met Yu Qingyu, a math genius who was always a loner.
A book of poems and a heavy rain, they glimpsed the glimmer of each other's souls at the intersection of youth.
Sang Mo wrote in his notebook: "Your eyes are like silent lakes. I would like to be a fish and indulge in them."
Yu Qingyu wrote on the back of the diary: "The unsolvable formula is called Sang Mo, and the answer is the countless power of heartbeat."
They agreed that on the day when the college entrance examination ends, they would tell each other the most important thing.
But when the last exam bell rang, Sang Mo rushed out of the examination room, but he only saw Yu Qingyu smiling and waving across the road, and the dazzling car lights crushed the entire summer.
"I love you."
These are the last words Yu Qingyu left in the world.
While sorting out the belongings, Sang Mo discovered that the last page of the black diary read: "If I only have three days left to live, I want to use it to love you openly."
?"Youth is an unfinished poem, and you are the most painful line."
?"Later I wrote 'Dedicated to A.' On the title page of every book, as if you had never left."
"After all, we couldn't live up to the story - you became the stars, and I became the one who counts the stars."
Purpose: "The most painful regret is the eternity that was almost reached."