Masato Koga is a film-exclusive character who appears in Major: The Winning Shot of Friendship.
Appearance
As a child, he has whiskers on his face.
Personality
He appears to be contempt at Goro later, after finding out he is the son of Hideki Shigeno.
He is the ace pitcher, while Goro takes his position as cleanup hitter.
Gallery
A teammate tells Koga to watch the 5th grader try-out.