Koichiro Nango, the center of Tsukubu High School’s basketball team in Slam Dunk, is a powerful and disciplined player who plays a vital role in anchoring his team’s defense and interior offense. Standing tall and physically imposing, Nango’s presence in the paint gives Tsukubu a strong foundation, both on rebounds and in close-range scoring. His strength and positioning make him a reliable rim protector and an effective counterpart to Tsukubu’s dynamic perimeter players.

As a key member of captain Tomokazu Godai’s team, Nango represents Tsukubu’s balanced approach — a mix of physical toughness and teamwork. Godai’s leadership and tactical understanding complement Nango’s inside dominance, making their team one of the most competitive in the Kanagawa tournament.

Nango’s most memorable moments come during Tsukubu’s clash with Shohoku, where he faces Hanamichi Sakuragi. Their rivalry is as much psychological as it is physical. Both players, proud and fiery, battle fiercely under the basket for rebounds and position. Nango’s experience and skill initially give him the edge, but Sakuragi’s tenacity and growth gradually shift the balance.