In the long years of maturity and ignorance, many people's life span has become inexplicably short. In the mortal world, some people have mastered some memories that can control the lives of others through the teachings of their ancestors, and thus started a duel for memory. In the world at that time, the password was just a legend, but infinite clues showed that it existed all the time, magically leading people to unimaginable and unreachable abyss... This article takes the ancient declining countryside as the starting point, and slowly unfolds for readers the struggles of two generations in pursuit of memory codes... The world at that time was chaotic, and some people were destined to show their talents and leave a trace of their own sighs in the future dynasties...