Sidoh is a powerful antagonist in the anime series "Dragon Quest: Dai no Daibouken". He is a formidable demon lord known for his immense strength and malevolent presence. As a major adversary, Sidoh plays a crucial role in challenging the protagonist, Dai, and his companions. His character represents the embodiment of evil and destruction, seeking to dominate and wreak havoc upon the world. Throughout the series, Sidoh’s encounters with the heroes serve as pivotal moments that test their courage, resolve, and growth, ultimately shaping the narrative's progression.