Bus No. 107 in Haishu District

He always took bus 107 and circled the Drum Tower three times in the evening, with the dim street lights reflected in the car windows. The conductor changed several times, but he remained the same. One day a girl got on the bus and sat down next to him: "I always saw you when I was a kid." He smiled: "I'm waiting for someone. She said she would get on the bus at Gulou Station." When the bus arrived, the girl handed over a yellowed note: "Mom asked me to hand it over - she said she had been on the bus." It turned out that waiting was two people walking around the same center of a circle for a lifetime.