Oosawa Masaki is a middle school girl who has spent her entire life in the shadow of her family's karate dojo. Raised by a stern father and older brothers, she has developed a tough, masculine appearance and personality that lead everyone around her to treat her as anything but a girl. One day, she is nearly hit by a car and is saved by a handsome young man named Tachibana Kaoru. Instantly smitten, Masaki becomes determined to find him again. When she notices that her aloof classmate Katakura Saaya carries the same distinctive skate bag that Kaoru had, she follows Saaya to an ice rink. There she discovers that Saaya is a figure skater, and more importantly, that Kaoru is also a skater.

Driven by her desire to become a girl worthy of Kaoru's attention, Masaki impulsively steps onto the ice for the first time. Despite her lack of training, her karate‑honed balance, leg strength, and fearless attitude allow her to perform a basic jump on her first try, stunning Saaya and her coach. Masaki begins taking figure skating lessons, much to the dismay of her father, who insists she should focus only on karate. As she trains, she gradually sheds her rough exterior, learning to move gracefully and embrace a more feminine side. Her natural athleticism and competitive spirit soon put her on a collision course with Saaya, who initially resents Masaki's sudden intrusion into her world but eventually comes to respect her rival's determination.

The story follows Masaki's growth as a skater and as a young woman. She struggles to balance her family's expectations with her new passion, and her feelings for Kaoru grow complicated when she learns that he and Saaya have a close, unresolved history. The narrative builds toward a local competition where Masaki hopes to prove herself not only to Kaoru but also to her own father. Along the way, she forms friendships with other skaters, including the supportive Saionji Tarou, and must overcome self‑doubt, physical setbacks, and the pressure of living up to her father's strict ideals. The manga concludes with Masaki finding her own identity on the ice, having transformed from a rough‑and‑tumble karate girl into a confident figure skater who has earned the respect of those around her.