The male protagonist Jiang Chen travels to a fantasy world. As soon as he arrives, he encounters his elder brother Jiang Yu whose engagement has been broken off. He accidentally unlocks the chance critical attack system. After binding Jiang Yu, he gives medicine to resolve the crisis and gets high rewards. After that, he successively bound Shangguan Mingyue, Jiang Daoxin, Luo Xiyao and other children of destiny, and used the system to stand out in sect assessments and secret realm explorations, to fight against the Luochen Sect's conspiracy, and to reveal the secret of the old monster who stole the body and planned to become an immortal by stealing the body thousands of years ago. In the end, Jiang Chen accumulated critical hit points to exchange for immortal power, shattered the Luochen Sect's plan, helped the world recover, and led his friends towards the immortal gate.
