The male and female protagonists had a secret love for each other, but they did not express their love until graduation. When they graduated, the male protagonist gave the female protagonist a bottle of stars because the female protagonist missed him. When she opened the bottle of stars, she found that 520 of the star papers inside were love letters. They were happily together, but the good times did not last long. The boy got advanced gastric cancer. He did not want the girl to worry and separated. The boy died before. When the girl learned the news, she rushed to the tombstone and cried for a long time...
Intention: Love yourself well