A group of six good friends, high school girls from a certain town. The six girls are growing into adults in Kokoro and body, and are curious about sex. Each of them has sex with a different man almost every day, and gets excited about the sex they just learned, and cums over and over again. In the end, they all get together and have an orgy?! This is the story of the youth of modern high school girls, whose lewd Kokoro can't be contained all day long.