A training camp by a tranquil waterfront, offering a temporary escape from the city's hustle and bustle. Married women, busy with housework and childcare, gather here for a swimming school retreat. Under the scorching summer sun, their swimwear-clad figures shine brilliantly, like symbols of the season itself. However, this beautiful scene becomes the starting point of the head coach's malicious intentions. His lust-driven plan begins to unfold within this serene location. Unpleasant schemes targeting the married women gradually intensify. Amidst the scent of water and the glow of sunlight, what will they eventually come to realize?