Sanga is a large, burly man with a strong, muscular build, fitting the archetype of a powerful and imposing leader. His physical stature aligns with his role as a formidable ruler.

As the leader of Last Land, a fortified city that controls the only safe water supply in a post-apocalyptic world, Sanga maintains his authority through brute force and religious manipulation. He exploits Bista, a young boy with amnesia, by presenting him as the false deity "Lord Doha." This deception convinces the citizens of Last Land that Sanga’s commands are divinely ordained, solidifying his control over them.

Sanga’s character arc follows his transformation from a father who once cared for his son, Seiji, into a tyrant corrupted by power. He abandons Seiji during his youth, subjecting him to a harsh trial by dropping him into a canyon and instructing him to climb out if he wishes to surpass his father. This act reflects Sanga’s belief in tough love and his desire to strengthen his son through extreme adversity. However, these methods ultimately lead to Seiji’s rebellion and death, highlighting the tragic consequences of Sanga’s choices.

Sanga’s actions serve as a driving force in the narrative, prompting the protagonist to confront and defeat him. His death acts as a catalyst for subsequent events, including the rise of Seiji and the challenges faced by the inhabitants of Last Land.

Key traits include an authoritarian leadership style, the use of religious deception to maintain control, and a complex relationship with his son that shifts from affection to abandonment. These characteristics contribute to his role in exploring themes of power, control, and familial bonds.