Introduction to Cai's residence: In the middle of the Qing Dynasty, Cai Qichang and Cai's father and son, whose ancestral home was Guanqiao, came to the Philippines to do business. After more than ten years of hard work, they accumulated millions of assets. Later, after inspection, they considered "long-lasting business" "Business is not as good as agriculture." He transferred a large amount of wealth to the country, built many large houses in his hometown to form residential complexes, purchased wasteland extensively, and organized brothers and nephews to cultivate it vigorously.