At a secluded ryokan, two former track teammates enter a week-long competition designed to test their limits of service and endurance. The victor earns the chance to become the trainer’s exclusive partner, while the runner-up is offered to the other attendees. Dressed in provocative ensembles, the rivals perform before cameras, share mixed baths, and compete in acts of devoted attention, each striving to outshine the other through escalating displays of submission and resilience. Their intense rivalry transforms the elegant setting into a stage for personal transformation and fierce ambition.