“Who do you think you are? What chance do you think you have against me?”
—Battle Quote
Glass is a Sacaen swordsman and the boss of Chapter 2 in Fire Emblem: Rekka no Ken. He only makes an appearance in the chapter because he wants to steal Sacae's most famous sword, the Mani Katti. Upon threatening the priest charged with protecting the Mani Katti, the priest puts a spell on it to make sure Glass cannot remove it. Glass is a level 3 Mercenary. Being a mercenary, Glass has fairly balanced stats. He can be defeated most easily using Kent or Sain. Glass is the first mercenary boss fought, the next being Beyard, in Chapter 7x.
He is the first enemy unit of Lyn's route to drop an item, a Vulnerary, when defeated.
Like many other bosses, he shares a character portrait - in this case, with Igor.