The One Who Wrote This
Great Robo Cup Champion
That's true too. Didn't think about that.Makes sense, but I also think that only his whole left arm was armored to emphasize his use of Ragnell with one hand and to allow better movement of his right arm (his sword arm). It's also to emphasize his Hero class in which his left arm (armored) could serve as a shield, referencing the Hero class in general which is normally depicted as a sword-and-shield class.