Third-year junior high schooler Manaka Mizusawa is tasked by her teacher to put a poster up about a trial ice hockey class sponsored by the Dream Monkeys, their city's local professional team. Interested in attending the class herself, Manaka also persuades her younger sister Ayaka and her clubmates Kaoruko Yanagida and Mami Ono to join her. When the four gather at the gymnasium where the tutorial is held, they meet fellow third-year students Riko Saginuma and Naomi Takagi. As the girls practice their hearts out, their fascination for the sport increases, motivating them to play on a competitive level. Wanting to experience the unique and exciting memories that ice hockey can offer, the girls gradually form a team that has the potential to reach the top. The story takes place in Nikko city, Tochigi Prefecture, where girls aim for the top of the world through ice hockey. Local junior high school student Manaka and her younger sister Ayaka, whom she forcibly invited, hit the gate of first-hand experience with ice hockey, held by the Nikko-based team Dream Monkeys. The two are joined by their childhood friends Kaoruko and Mami. As the girls practice, they become fascinated with ice hockey and eventually join the team.