Kitagawa Marin and her husband spend their days filled with love, but the failure of the store has put the family's finances in a tight spot. The moment she accepts the taboo conditions in exchange for her grandfather's support, her body is overcome with a lustful pleasure so intense it melts her mind, her private parts begin to ache, and she is engulfed in a wave of greedy carnal desire. Though she thinks of her husband and tries to resist, the memory of their intimacy that burns her skin takes over her body, and she can't suppress her sweet sighs and lascivious expression.