For athletes, abstinence before competitions is often considered a customary practice. Though lacking scientific basis, it may serve as psychological reassurance or superstition. She is "Jyun" (20), whose life revolves around running—her passion and purpose. She dedicates every aspect of her daily routine to improving her time, strictly managing diet, schedule, and physical condition with running as her sole focus. Yet there's one thing she cannot sacrifice for running: pre-competition abstinence. Since taking up running in high school, her body has developed an intense, uncontrollable arousal. Especially after grueling training sessions, she feels a throbbing desire, an unbearable restlessness in her groin. In those moments, she seeks relief alone in the empty sports equipment room after school, rubbing herself against a hurdle for pleasure. One day, her habitual after-school act is discovered by a male teammate. Fearing exposure and humiliation at school, she falls into despair—but the boy doesn't leave. Instead, he quietly asks, "Can't you show me more?" Embarrassed, she tries to refuse, but he stares intently and whispers, "Are you really okay with being exposed?" Her mind wavers between losing her school life, enduring shame, or submitting to masturbation in front of him. Unable to risk everything, she reluctantly begins pleasuring herself before him. At first, her movements are timid from shame, but sensing his serious gaze, she feels an unfamiliar, intense arousal. The pleasure overwhelms her—her breathing turns ragged, her hips thrust violently, and she climaxes in front of him, trapped between shame and ecstasy. From then on, their after-school encounters escalate daily. They begin mutually masturbating, sharing pleasure together. Eventually, merely watching his erect cock isn't enough—she starts cleaning his sweat-soaked, pungent member with her mouth after practice. This secret ritual becomes routine; she can no longer focus on training without sexual release. Is she aroused because of training, or does she train just for the thrill of their after-school exhibition? For her, practice and sexual gratification have become inseparable. Now, she can't even tell why she continues such harsh training. Does she run because she loves it, or because she craves the sex afterward? Perhaps it doesn't matter. If this is her passion, then order is irrelevant. Today, she runs again. Where to, and for what purpose—only her body truly knows.