Sand God Child did not wish to proactively bring about any harm to Jiu Panpo; he simply wanted her to see clearly that her husband, Zhao Changsu, and her sister, Bodhisattva, were all unreliable.
Zhao Changsu usually acted carefree, but behind the scenes, he was a scoundrel. Not only did he practice Joyful Zen Skill, but he was also fickle in love, easily swayed by those who acted more coquettishly.
The witch was not more beautiful than Jiu Panpo, but she had more feminine charm. Compared to Jiu Panpo's decency and self-respect, she did not always acquiesce to Zhao Changsu.
Over time, Zhao Changsu developed a desire to dote on the concubine and destroy his wife. Had it not been for Sand God Child's secret protection, the adulterer and his mistress would have killed Jiu Panpo there and then!