The twins' ancestor was from Xia Empire, a small farmer who lived alone with his little daughter. At that time, Monk Du was being hunted down by the Xia army for some unknown reason. Ignoring of this fact, the farmer had kindly offered Monk Du room and board for a night after seeing him his haggard form wandering the village.
Unfortunately, this kind act brought the farmer his doom. After Monk Du left, the Xia army arrived in search of the Monk. They tortured the farmer to get information, but he knew nothing and so could give nothing. He pleaded for his life and in the end, the commander agreed to spare him but they gave him a severe beating as punishment for housing a criminal wanted by the royal family.
