Popular gravure idol Fumika plays a farmer's wife who is a former police officer and Kyokushin Karate expert. She married into a farming family, and is troubled by her husband Yusaku's reluctance to engage in 'nightlife', and her only distraction is singing karaoke and chatting with her friends Midori and Asami, who live nearby, at a bar. One day, he meets an elderly woman, Kiwako Komada, at the bar. Kiwako's son, who works in Tokyo, had embezzled money from his company and was trying to reconstruct 3 million yen to make up the difference. Rumi and three others overhear the story and realise it is an 'Ore-ore' scam, and set out to eliminate the scammers.