Miku (32, alias), a married woman and chief obstetrician at a women's clinic, leads a busy professional life burdened by social responsibility and work pressure. At home, her sex life has withered, leaving her in a state of chronic sexual frustration. Through the Public Exposure Housewife Club, she met a Master who introduced her to intense slave-style training, awakening her deeply hidden deviant desires and amplifying her masochistic nature. Miku harbors an exhibitionist fetish, and being taken outdoors sends her into extreme arousal—drooling uncontrollably in sheer ecstasy. Recently, she has come to realize her true self as a depraved sex slave and now actively seeks out increasingly brutal training, growing ever more obsessed with chasing ultimate pleasure.