The three seido core had entered the Major league, new teams will they face that were much stronger than before when they were high-school and at college, they will meet new face of pitchers and meet new challenges up ahead

Princess Nine Aftermath. Ryo feels devastated that she and her team failed to qualify for the National High School Baseball Championship after they were beaten by the Kisaragi Boys' Team. When Ryo re-visits the baseball field, she weeps again. One day, she's greeted by a legendary pitcher named Goro, when he witnessed her amazing pitching technique. Can he help her out? R&R, plz!