In this chapter, we learn that the holy crystal is a class weapon that can be used to increase the resistance of a player's class against undead monsters. The holy crystal also acts as a material for making light weapons, which can be useful in times of crisis. The narrator explains that the crystal is also useful in forging weapons, but that the more rare it is, the more important it is in combat situations. He tells us that this is the time to use the crystal because the undead monsters are already ridiculously strong. He says that he won't be able to fight them now because they're already so strong that he's going to run away.