Shunsuke Aoyama is better known as Shun. He plays as a midfielder for Raimon.
Shun is Hugh’s best friend, and along with him, he decided to leave Raimon after the team fought against the Order of Black Templars (Victor Blade’s team).
Nonetheless, Shun never entirely abandoned his team, as Hugh and him kept watching their friends’ training sessions and became aware of how much the other players were improving. Eventually, they choose to join Raimon again.