To be precise, Old Master Cheng fell ill after the Tomb Sweeping Day ancestral worship.
In Guangcheng, great importance is placed on observing the Tomb Sweeping Festival. With the Cheng family being prosperous, the entire family went out to pay respects, honoring the old master's parents.
During the ceremony, the old master knelt and wept uncontrollably before his parents' tomb, as he had never found his sister, who had left in anger, and did not know if she was alive or dead.
The old man felt guilty towards his parents and feared he might never find her again in his lifetime. This sorrow and worry made him fall ill, and even in illness, he couldn't stop thinking of his sister's name—Suxin!
If it weren't for the old man saying this woman resembled their aunt and hearing her name, Cheng Yaozong and the others might not have thought to come and look for Cheng Su.
Cheng Suxin, Cheng Su, regardless, the connection is quite deep now.
