College student Lin Bai is betrayed by his girlfriend, Zhang Rong, and falls into the depths of despair. Just when his life hits rock bottom, he unexpectedly awakens a special system that grants him the extraordinary ability to modify a single character in the rules governing supernatural entities. Faced with an endless stream of terrifying anomalies, he cleverly exploits loopholes in their rules, changing just one character to break restrictions and turn the tables. Time and again, he catches these entities off guard and leaves them helpless. As he fights his way through one perilous trial after another, Lin Bai grows stronger, overcoming countless obstacles to rescue his trapped parents and childhood friend, Shen Yao. Breaking free from the dangers that once held him captive, he uses his unique ability to conquer deadly situations, transform his fate, and gradually rise to the pinnacle of his life.