Hikari, a plain-looking college student who came to Tokyo from the countryside, is actually a super unlucky girl who has had lots of sex in her hometown. He seduces his girlfriend's classmate and the manager of her part-time job and has sex with her. He pretends to be naive until he rides her in missionary position, and it changes completely when he rides her in cowgirl position! Toying with men in an irregular cowgirl position! Even if he ejaculates, he doesn't stop shaking his hips, and he devours her pleasure and makes her cum over and over again until he is satisfied! [SODs