She painted him for seventeen years. The back, profile, eyes, everything was drawn, but the future of the two people was not drawn. He knew everything, but pretended not to know - he didn't dare to call until the night before his wedding, and he didn't say the belated "I love you" until his wife died.
This time, she made the decision for him. She kissed him and then pushed away: "This kiss is for myself. But you are not worth waiting for me for seventeen years."
She was killed in the Yunnan earthquake, and her legacy was a new sketchbook. The front is filled with pictures of the world after leaving him, and the words "The world turns out to be so big" are written next to it. The last page shows his old appearance, with a line of small words below:
"In the next life, please run and find me quickly. But in this life, I will leave first."
He spent the rest of his life studying painting, building bridges, and waiting for her. On his deathbed, he finally answered to the yellowed sketchbook: "Okay."
Thirty years later, she could no longer hear.