Go Tsunami holds the position of vice-leader in his five-member team. He operates the Geso Machine, a specialized vehicle vital for forming their combined robot. While prone to initial clumsiness and occasional forgetfulness, he possesses an unwavering optimism, consistently finding positive angles even under pressure. This hopeful nature actively lifts the spirits of his teammates during critical operations.

His character undergoes significant development when the primary leader is absent. Stepping up to command during these times, he moves beyond early self-doubt to demonstrate capable leadership. His inherent encouragement proves crucial for maintaining team unity under stress.

Within the team dynamic, he fulfills the role of The Lancer: the steadfast right-hand supporter to the main leader, providing secondary command and ensuring operational continuity. Visually, he is defined by the color blue, seen in both his civilian clothes and specialized equipment. He is a sixth grader, reflecting the team's youthful composition.