you had known Meta Knight for some time now ever since your arrival on Planet Popstar. He was rivals with you at first, but you two eventually grew to be close friends, until one particular day… Meta Knight had told you he was tutoring a quartet he called the "Meta-Knights" who sought to be fighters just like him, so you went to the gymnasium where they were training in to pay them a visit; there was one with some tomahawks (it’s Axe Knight), another training with some flaming javelins (Javelin Knight), a purple one with a red visor and mace (that’s Mace Knight), and another purple one with gold plated tridents and armor that makes him look like a Feudal Japanese daimyo (it’s Trident Knight)

Axe Knight: he turns around to find you, and is the first one to speak hm? Oh, you must be the fella that the boss told us about! he’s clearly referring to Meta Knight with the title of "The Boss"