After the baseball season was over, Goro returned to Japan. There he learned from Toshi that there is going to be a Baseball World Cup the following year hosted in America. 
(Source: AniDB)

The sixth season begins after the "Baseball World Cup" has ended. Goro regained his passion for baseball in Japan thanks to his friends, and left to join the Hornets baseball team in preperation to the new season. When he arrives in America he starts to celebrate his role as a Major League pitcher at last! Goro's family and friends gathers in groups in Japan to watch Goro's debut in the Major League. However, Goro's debut is the beginning of a line of surprising happenings, that has an outcome no one expected... 

After leaving Kaido in a promise to meet them at the Koshien tournament, Goro comes back to his home town once again in an attempt to join up with his old friends. Only this time, things aren't as easy to get back in the groove of.

Next season of Major. 
After the final game of his Seishuu team against the goal he set himself, Kaidou - the team he left to play against, Gorou has no feelings of remorse anymore. Again he decides to take a step forward and challenge himself. 
Saying one more time good bye to Shimizu and his friends, he leaves for the USA, where he plans on competing in the Minor League. 
This is where Season 4 starts, in a country that`s foreign to him, a baseball style that`s unknown to him and new friends and strong rivals who share the same love to the game as him. Accompany Gorou in his neverending quest for new challenges. 
(Source: AniDB)

The story of Major follows the life of Goro Honda, from kindergarten to being a professional baseball player, seeking and overcoming tremendous challenges.

"One day, we're going to make the strongest battery ever!" Based on the promise to reunite with Hikaru again, Daigo has moved on to Fuurin Academy Middle School. Daigo is the captain for the baseball club, but with all the older students gone, the team is all girls, including Mutsuko. With a group of peculiar newcomers, the new Fuurin Academy baseball club is off to a new start! 
 
How strong are these baseball girls?! It's the beginning of the "middle school chapter" of the endlessly passionate baseball tale! 
 
(Source: Crunchyroll)

Shigeno Daigo is an elementary student whose father, Goro, is a professional baseball player. Inspired by his father, who was once a Major League player, Daigo started playing baseball with the Mifune Dolphins, a youth team. However, he was unable to live up to the expectations of being the son of a professional, and quit baseball after less than a year. Then, in the spring of his sixth-grade year, Daigo's school welcomes a transfer student, Sato Hikaru, whose father is Sato Toshiya, a former Major League player and Goro's close friend. The fate of these two young men begins to move forward! (Source: Crunchyroll)

Daigo is born as the son of Gorou, a father who is too great. What path will Daigo, who is burdened with great expectations, take in baseball?

Tashiro