We can even say "Yipo" and "Tang" are parents, but the parents mentioned here are not simple individual images, but the deep embodiment and surface of "fatherhood" and "motherhood". Through the images of two mother-in-law created by Gong Lao, we can vaguely observe what role ordinary parents in the world have played in the growth of their children.
"Tang" is such an image. She gave the contractors asylum and deprived them of their names (personality *) and freedom. Contractors can work under her, but in exchange, they must also abide by the rules she made. The contract stipulates that resistance will become a pig to be eaten, but if you follow "mom", your life will be guaranteed. Tang's attack on the intruders in the soup house also shows the "protector" side of "motherhood".
As the twin sister of Tang Dynasty, Shipo is the representative of "fatherhood" image, which distinguishes right from wrong and respects personal wishes. She severely punished those who stole the white seal of the contract and accepted the sincere and brave Chihiro without any bad feelings; When Chihiro said "I want to go back", she left without hindrance.