Rain falls over Lin'an, and the qingtuan are green and glossy. He gave her an umbrella, and she remembered it for years. Only later did she learn that he'd given it to her on a whim, and the qingtuan had been for someone else. She couldn't bring herself to throw it away, but she didn't stay in place, either.
Theme: Love is only one part of life. Being able to let go is the true meaning of life.