The protagonist Lu Chen has added a "memory backlash" setting - every time he activates the "memory wrinkle point", his body will retain the "death mark" of the deceased (for example, after contacting a deceased person who was electrocuted, his fingertips will remain scorch marks for a long time; after contacting a deceased person who fell into a river, river water will ooze out of his skin for no apparent reason). When the marks accumulate to 3 places, he will temporarily lose control of his body (for example, unconsciously walking towards the power source or approaching the river), implying that "he is gradually becoming a container for the remnant souls." Supplementary view of the world: "Memory Devourers" can tamper with reality through "memory pollution" - for example, making the clock in the home of an amnesiac permanently stop at the time of death of the deceased, allowing the memory carrier to operate automatically when no one touches it (such as an AI speaker playing recordings by itself in the middle of the night, a smart mirror suddenly lighting up), and the scope of contamination will expand as the "Memory Master" is unblocked. Later, the street lights in the entire old city will turn dark red, like blood-stained bones.