The protagonist, Lao Zhou, has guarded a suburban cemetery for thirty years. People from all walks of life are buried in the cemetery: veterans who died in war, students who died young, and teachers who never married. Lao Zhou's daily life is very simple: cleaning tombstones in the morning, watering withered flowers, and sitting under the old locust tree at the entrance of the cemetery to smoke in the evening. But since half a year ago, at the beginning of every month, a fresh bouquet of white chrysanthemums will appear in front of the tombstone of "No. 7, Row 13" in the cemetery - without signature or card, just quietly placed in front of the tombstone, as if someone came to visit secretly but did not want to show up. Lao Zhou checked the information on the tombstone: the owner of the tomb was named Lin Wanqiu. He died in an accident ten years ago at the age of 28. The relatives column only read "None".
