This chapter's epigraph comes from a famous line in the play, "My King weapon is invincible" . It's a quote from the play's opening soliloquy, in which the hero says that his sword is invincible because it's made of armor made of a substance called "Xuantian Armor" , which is the same substance as the armor of the yunming martial house. In other words, the armor is made of steel, and the sword is made out of fire-forged iron. The two swords are so similar that they can be compared to each other. This is the first time that the hero has seen a sword made of iron, and he's worried that this will be the last time he sees the sword made from steel. He's also worried that the swords will be so close that they won't be able to beat each other, because they're made of the same material. The only thing that can stop him is that he can't beat the swords, because the swords are made of different metals, and they'll have different levels of armor on them. This means that the sword will have a different level of armor than the armor, and it'll be harder for him to beat it. The hero is so worried about this that he threatens to torture the swordsman to death if he doesn't stop.