One day, when the women's basketball team's Winter Cup preliminaries have begun, Chinatsu's father, who was abroad, returns to Japan for a short time.
When Chinatsu confesses that she's dating Taiki, her father tells her to live apart...?! And then comes the Winter Cup preliminary finals.
The opponent is Saisho High School, led by Yumeka, his childhood friend and strongest rival.
With the days of practice held close to her heart, Chinatsu's unstoppable battle begins...!