After an altercation that ruined his life, Kai Astraea transferred to Kaminari High where he was looking forward to leaving the world of Zodiac basketball behind. He wanted to join the Seahawks. However, they have being losing matches for over thirty years since an incident that happened during the Summer tournament of 1980. Faced with a chance to make things right for his past mistakes. Kai promised to take them to the Summer tournament. But is there someone deliberately sabotaging the team to prevent them from winning every single time.
There are many zodiacs that don't like Zodiac basketball. Because they hate the division of Zodiac basketball and how they distort basketball.
This story is about two people who find their fates intertwined, and they promise to help each other overcome the difficulties of the past. Together, they can revive the team and win the Crimson Cup.