She kept this woman alive for a reason related to the Duanmu family.
From Duanmu Jingyin’s memories, she learned that the Duanmu family had been searching for something within the Taixuan Secret Realm. It was rumored that whoever obtained it would have a chance to ascend to immortality. Of course, it was not the object itself that bestowed immortality, but rather that it granted access to a specific quota to reach the Upper Realm via the Tower of Heaven. Such secrets were known only to the core members of the clan, and as it happened, Duanmu Jingyin was one of them.
Ultimately, Li Dai confirmed two things from these memories:
First, super-powerful clans like the Duanmu family had connections to the Upper Realm.
Second, the description of the item those people were searching for sounded suspiciously like her Xinxin space; both its color and shape matched perfectly.
Chapter 233