1. Conflict of values: Cai Hung-chien is a traditional gentleman, who has a very disgusted and disgusted attitude towards vulgar places and cultures. He may feel that a brothel gathering place like Sisi Road does not conform to his values, because such a place often represents moral decay and bad cultural atmosphere. In addition, he may be dissatisfied and indignant at the commercialization and exploitation of female bodies.

2. Disappointment and indignation: Cai Hung-chien didn't approve of going to such a place as thinking, but he finally went and didn't see anyone. This experience made him feel disappointed, even a little cheated. At the same time, he may be indignant at those who invited him to Sise Road, because they deliberately teased him knowing his position.

3. Care for mother: Cai Hung-chien's mother may not know the nature of the four-color road, and Cai Hung-chien is worried that she will be affected by this harsh environment. So when the Zhou family sent four-color dishes, Cai Hung-chien felt very angry. He forbade his mother to accept these dishes. This is both his concern for his mother and his protest against this unhealthy cultural phenomenon.

Generally speaking, Cai Hung-chien's anger can be attributed to his dislike of vulgar culture, his dissatisfaction with being teased and his concern for his mother.