|Also Known As|
|Family|| Tetsuya Koga (father)|
Megumi Koga (younger sister)
|Team(s)|| Hakata South Little|
Hakata University Team
|Position||Pitcher, Right Fielder|
|Anime Debut||MAJOR: The Winning Shot of Friendship|
|Voice Actor||Kenji Nojima|
Masato has whiskers on his face.
Masato dreams of becoming a pro player like his father. He resents Goro for replacing his position, and as the son of Hideki Shigeno for fulfilling his father's position after being demoted to the farm team due to his shoulder injury.