Kurumi Tamaki visits a specialized esthetic salon focused on V-I-O line care. This time, she comes to Yukari Miyazawa for intensive O-line treatment. Yukari's movements are consistently gentle, and under her skilled touch, Kurumi gradually becomes deeply aware of every sensation. As Yukari lathers her anus with abundant saliva, softly stroking around it, then lewdly laps at it with her tongue, the atmosphere grows increasingly erotic. Yukari's approach intensifies, stimulating Kurumi's anus in various positions repeatedly, driving her sensitive body to orgasm over and over. The experience seems to guide Kurumi into a state where both her mind and body are completely liberated.