Having married young, Aika felt uneasy about her mundane married life. Her husband recommended she try an esthetic salon, so she visited a newly opened shop. Reassured by the attentive counseling, she let her guard down—only to realize too late that the lotion had soaked through her black pantyhose, glistening lewdly. After being secretly filmed, she found herself unable to resist, returning to the salon repeatedly. Despite truly hating it, she keeps going back even as the older male therapist's invasive treatments reach as far as her home.