Chang Geng is the protagonist of the series 'Sha Po Lang'. He is a young man with a mysterious past, raised in a small village with a humble upbringing. As the story unfolds, it is revealed that he is the heir to a powerful lineage, possessing unique abilities that could change the fate of the world. Chang Geng is characterized by his determination, intelligence, and compassion. Throughout the series, he embarks on a journey of self-discovery, forming deep bonds with key characters and playing a crucial role in the unfolding political and military conflicts.