Rumor has it that Momo Kawashima, former student council member at Ooarai Girls Academy, is bound to repeat a year. Having failed her university entry exams, she is far from spending another year at Ooarai, but her plight is unenviable nevertheless.

The only way for her to gain admission into a university is to be granted an athletic scholarship. With the Winter Continuous Track Cup rapidly approaching, Momo becomes the commander of Ooarai's tankery team, so as to demonstrate her sport skills and wipe away the stain on her honor.

Their first opponent—French-themed BC Freedom High School—is split into two factions that are constantly at odds with each other. Despite this seemingly fortuitous match against a disorganized rival, Ooarai might soon find itself taking one step too far.