Kozue's climb is relentless, and every rung up the ladder costs something real. The show doesn't pretend volleyball is metaphor, it's the stage where ambition eats itself, where teammates become rivals, where one girl's dream becomes the weight everyone else has to carry. By the time she reaches the national team, you realize the sport never mattered as much as the person she had to become to get there, and whether that person is still her.

Kozue Ayuhara lives for volleyball. The high school girl brings relentless energy to every match, driven by one ambition: to earn a place on the Japanese national team. What starts as competition in her school district league grows into something far bigger as she climbs, one stage at a time, to the Japanese finals and on toward the international championship. But the higher Kozue rises, the more success shows her its darker side. Expectations placed on her grow too heavy, conceit takes hold, and envy stirs around her, all building toward serious trouble. The result is a long-running sports drama about ambition and what it costs to reach the top.