When I arrived in Nanjing, a friend made an appointment to take a stroll and stayed for a day. The next morning, I had to cross the river to Pukou, and in the afternoon, I took a car north. My father had already agreed not to see me off due to his busy schedule, so he asked a familiar tea house in the hotel to accompany me. He repeatedly instructed the tea house, very carefully. But he finally felt uneasy, afraid that the tea room would be inappropriate, and hesitated for a while. Actually, I was already twenty years old at that time, and I had been in Beijing two or three times, so it didn't matter much anymore. He hesitated for a while before finally deciding to send me by himself. I repeatedly advised him not to go, but he only said, "It's okay, it's not good for them to go!"