A well-mannered, high-class office lady from a top-tier company is kidnapped. When she regains consciousness, she realizes she's been tied up. Amid fear and confusion, she screams, "Stop! What are you doing?!" but is surrounded by men grinning maliciously. They declare, "Welcome to our adult circle," and hungrily grope her voluptuous H-cup breasts. Overpowered by pleasure, her body becomes immobilized, and she ultimately reaches orgasm. What awaits her beyond this point is an unimaginable turn of events.