Toru and Takuya are best friends who have known each other for 20 years. Both of them were still virgins, and they were so-called Tetsu-chans who chased trains' butts more than women's buttocks. One day, I stopped by a hot spring inn on a photography trip and ran into Haruka Aizawa, a lusty mature woman who loves virgins. The two instantly fell in love with the woman...
