When Xie Li turned eighteen, she unexpectedly received a notebook left behind by her grandfather, but in doing so, she lost her memories.
A chance mishap at the library brought her together with a group of companions, and they became friends who could talk about anything.
When university ended, Xie Li set out to follow the clues her grandfather had left in his notebook. Thus began an extraordinary adventure for her and her friends.
Deep in her mind lay a vast palace of memories, filled with countless incredible mysteries.
Many of the world’s strange and inexplicable events, it turned out, had clues pointing to their cause.
What was behind the ghostly figure in the old mansion, and the legend that a child’s cries could be heard there every night?
The palace of memories brought them many benefits, but as those benefits grew, so too did the hidden dangers, and the price they had to pay kept rising.
A vast conspiracy was quietly unfolding, along with the clues in the diary and the secret behind her grandfather’s disappearance...
