Therefore, Tang Li Xue decided to do this pretense to help Little Loki obtain legitimate status in the Imperial Palace.
If anyone wanted to catch or kill Little Loki in the Imperial Palace, they had to consider the Third Prince's face first since they would offend the Third Prince by doing that.
Tang Li Xue's every move was under the surveillance of the Third Prince's maids and guards, and she was locked up in her room most of the time, so she hoped Little Loki would be her 'ears' and 'eyes' for spying or eavesdropping any news in the Imperial Palace just like what Tang Li Xue did in her fox form when she was in the Asura Demon Sect before.
With Xi'er working on the outside and Little Loki working on the inside, Tang Li Xue was very confident that she could get any information she wanted from Imperial City and Imperial Palace to help her judge the overall situation.
The information she would get from them was extremely crucial for her to determine the timing of her escape later.
