Underneath the neon-lit modern city, a little-known world lurks. Since ancient times, the fragile balance composed of "day descendants" and "night descendants" has been swaying in the darkness.
The Night Watch Association, a secret organization with a history of thousands of years, is not just a hunter. They are the night watchmen of borders, the mediators of rules, and the final valves to out-of-control forces. Its members walk between light and shadow, using the extraordinary power called the "Alchemical Matrix" to maintain the precarious balance of civilization and shadow.
Today, the balance is loosening. The taboo relic "Seven Deadly Sins" gems that seal the concept of original sin have reappeared in the world, and the radical Night Descent "Demon Party" is ready to move. Within the association, ideological differences and ancient family conflicts are also undercurrents.
When the bell rings, they must answer: How much darkness is worth staining in the shadows in order to protect the daylight for most people? This is a modern urban legend about protection, price and how to find a glimmer of light in the eternal confrontation.
