Hibino Satomi visits a specialized esthetic salon to improve her recent concern about underarm dullness. The esthetician, Airi Natsume, begins performing a slightly erotic treatment on her. As they check the texture and scent of her underarms, intense underarm licking scenes unfold. Hibino becomes aroused by the stimulation, exciting Airi as well. In the private confines of the room, an intense lesbian underarm fetish massage session begins between the two.