Oosawa Mika, driven to desperation by unpaid rent, finds her body completely dominated by her lesbian landlady. Burdened by guilt over her arrears and crushed beneath the landlady's relentless demands, Mika struggles to endure. Yet her fragile expression gradually crumbles under the woman's intense caresses and expert techniques. Their lesbian relationship, clearly defined by master and servant roles, becomes deeply entangled as they share intense ecstasy. The sorrowful yet pleasure-filled connection between their mucous membranes deepens the narrative.