"Let's see just how ready you are to do what it takes."

A wandering material researcher.
He is not a knight, but for some mysterious reason he can use Material Weapons.
He is a young man with extensive knowledge, but he is haughty and can be sharp-tongued.
He seems to be a realist, but he sometimes lets his heart rule his head too.
Meeting Yamato and the others starts to bring about a change in the way Harleck thinks about things.