I always thought this was the story of the sea and the seagulls, and I also thought it should be the story of him and her, but I had forgotten that the embrace of the sea may be the most suitable for the seagulls, but it is not the final destination. So, in the separation and reunification, he lost more than just a seagull, and she gave up more than a piece of sea. Or maybe this was not their story in the first place, they were just passers-by, but she and him were. . . . . .