In the novel "Primordial Sin System," readers follow the journey of Dave Alexander, a man reincarnated into a life of privilege and power after enduring a previous existence filled with misery. Now the son of the empire's strongest expert, known as the guardian, Dave is determined to seize every opportunity presented to him.

Unexpectedly, Dave's life takes a unique turn when he discovers he possesses the Primordial Sin System, a mysterious system that grants him extraordinary powers and abilities by experiencing and embracing the seven deadly sins. Fueled by this newfound power, Dave sets out on a quest to collect beauties, conquer challenges, and ascend to the peak of his potential.