Shigeno Daigo is a grade schooler who's father is a professional baseball player.
Being enamored with his father Goro, who once even played in the Major League, Daigo joins the "Mifune Dolphins" baseball team.
However, with the pressure of measuring up to his father, he can't improve enough and quits after less than a year and turns to an uninspired lifestyle.
Then, in the spring of 6th grade, a transfer student from the United States arrives.
The new baseball anime you've heard so much about is finally ready to play ball!
Right. We're going to use a fourth 
grader to pinch hit for us!
!حسنًا! وقت تغيير الضارب
Okay, Pinch Hitter.
¡Usaremos emergentes de los de cuarto!
¡Usaremos emergentes de los de cuarto!
On envoie un batteur suppléant
parmi les CM1 !
Bene, useremo un battitore designato 
fra i ragazzi di quarta!
Certo. Vamos usar um substituto do
quarto ano para rebater para nós!
Так, у нас замена из четвёртого класса.