Dodo serves as a main antagonist in the series and is the youngest son of the Donarukami family. His appearance features light tan skin, yellow eyes, and long, messy green hair. He wears a light green button-up shirt covered by an unbuttoned purple button-up with sleeves rolled to the elbows, paired with a dark purple vest and matching baggy shorts. His accessories include four gold earrings (two per pointed ear), a gold belt, green and purple boots, purple gloves, and round sunglasses.

Personality-wise, Dodo demonstrates ambition and a strong drive to outperform his brothers to gain parental approval. He exhibits a short temper and arrogance, often yelling when situations deviate from his plans. A softer side emerges later, revealing a longing for friendship and emotional connection.

Key relationships define aspects of his development. He associates closely with Toraoh while the latter is brainwashed, fighting alongside him despite frequent arguments and competitiveness. Dodo considers Toraoh a friend and explicitly asks about their friendship, receiving rejection as Toraoh declares friends unnecessary. This rejection confuses Dodo, who continues to seek Toraoh's genuine camaraderie. His dynamic with his brothers, Doran and Doruku, involves disinterest in their conflicts and avoidance of interaction. He particularly harbors disdain for Doran, who looks down on him and once attempted to kill him. These fraternal tensions persist until a resolution where all three brothers reconcile and learn peaceful coexistence.

By the conclusion of the series, Dodo achieves his desired connections, forming friendships with both Wataru and Toraoh.