Kisaragi Yuu is a female member of the baseball team who plays alongside the boys. She is completely focused on baseball and has no interest in romance or sex. However, her breasts have grown to F-cup size, and are naturally the object of sexual desire for the adolescent baseball players. Finally, their desires run wild! Her first experience with a substitute team member, muscle training sex with the coach, and even gangbang! The beautiful girl chases the white ball and is soon covered in milky semen, learning the joys of sex...