In the year 3763 of the Judgment Star Calendar, the "white core" smart chip, known as the "cornerstone of the golden age of mankind", turned into a life-threatening curse without warning.
A strange disease called "Black Core Syndrome" spreads around the world. After experiencing a brief period of supernatural power, the deceased without exception died of cell failure throughout the body. The government defines it as a "disease", but only a few people know that there is a more terrifying truth hidden behind it.
An irresistible "Dream Call", a compulsorily installed "Deep Diving" app, a death game called "Abyss"... When you survive the simulated murder scene, you will receive the devil's gift - enough power to transcend mortals.
But at what cost?