The male protagonist has always secretly admired Rena-senpai—a senior with a toned physique and incredibly voluptuous figure. One day, a golden opportunity arises when he is assigned to assist Rena-senpai with her regular fitness training.
In the deserted gym, with only the two of them present, Rena-senpai is completely unsuspecting, engrossed in her workout, unaware of the male protagonist’s longing gaze fixed on her curves beneath her tight-fitting sports uniform. Uncontrollable excitement and desire compel the male protagonist to engage in bold and playful actions.
Initially, Rena-senpai is extremely embarrassed and tries to gently reprimand him. However, as the sensitive touches escalate, the instincts of a woman consumed by desire surge within her. Weak reprimands are quickly replaced by moans and passionate assertiveness. Before they knew it, they were both immersed in a clandestine and exhilarating “race” of physical intimacy right in the gym.
