Xiao Xue has been the housekeeper for the Gu family for 27 years, recognized as a sister-in-law, entrusted with the family heirloom戒尺 to educate the next generation, and highly respected. She was tasked to investigate Lin Weiwei, who hasn't joined the family, but treated her as an lowly housekeeper, making outrageous accusations of theft and threatening to dismiss her. Xiao Xue went to the Gu Group to confront them, but the Gu father and son were playing mahjong, trying to prevent her from triggering a level one alert. In the company, the director looked down on her and favored the Lin mother and daughter, until Gu Yan saw the戒尺 and rushed over in panic, kicking the director away. Gu Tianxiong announced on the spot to cancel the marriage agreement, and Lin Weiwei and her mother realized they had offended the true master.
