Office lady Mayu visits a nearby clinic for her back pain and leg swelling, expecting relief through massage and stretching. But something feels off—the usual treatment has taken a strange turn. At first, she tries to endure it, thinking it might be her imagination, but the ticklish sensations keep intensifying until she can't hold back anymore. The therapist's hands never stop, escalating into relentless tickling torture. "Gyahahahaha!! Wait, it's— it's tickling, you know?! Hahaha!! Stop it, please!!" she pleads desperately. No matter how much she cries out, the torment continues, growing even more merciless. Gradually, her clothes are removed, until she's left topless with both hands restrained, receiving an oil-covered tickling massage. Will Mayu be able to endure this? What will become of her? The unfolding situation demands attention.