The construction company run by Masao's husband saw a decline in performance and was acquired by Ozawa. Masao became the sales manager, while Yurine worked as his secretary under Ozawa. However, Yurine had a secret: when the business hit a rough patch, she had taken out a large loan. When she consulted Ozawa about this, he offered to lend her the money on the condition that she become his mistress. And so, as part of her daily duties as a secretary, Ozawa would entwine his serpent-like tongue with Yurine's luscious lips and indulge in her ripe body...
