Yuka joins the neighborhood baseball team in place of her father who has a bad back. Having excelled in softball, Yuka scoffs, "It'll be a piece of cake against old guys," but the coach, aroused by her voluptuous breasts and buttocks, takes advantage of Yuka's inexperience with men and begins sexually harassing her! Yuka, who unexpectedly gets turned on by the old man's erotic techniques, is subjected to further abuse, including fixed vibrator swings and core training with a pile-driving dildo...