First mentioned in chapter 858, when the Expansion Pack "Abyss Invasion" was triggered by Hell Fiend, who had used the Ancient Abyssal Book to open a Abyss Passage over Twin Towers Kingdom.


The Demonblade Knight is a special class that possess' the characteristics of a Berserker, making it extremely strong in melee fights, but it also had ranged attacking capabilities. Although the Demonblade Knight was neither a match for the Berserker class in a melee nor a match for Rangers and Elementalists in a ranged battle, the combination of these two modes of attacking increased the class’s survivability in battles significantly.

In order to class-change to an Demonblade Knight, players have to accumulate Merit from slaying abyssal monsters in Twin Towers Kingdom

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