Aina was married and living a peaceful life without any inconveniences. Suddenly, an old friend of hers came to her for advice and she was asked to pay off his debt. However, she was cornered by men and her husband refused to help her, so she accepted to become a substitute for her friend. Aina was toyed with again and again and betrayed by her friend, but she fell into a swamp from which she could not escape, drowning in the excitement and pleasure of the extraordinary.