Black Knight

"The Black Knight? Oh no. Seems that the Undead Alliance hired it for sure. I assure you, the Dark Lord Knight surely hopes that he can fight that one."

--Su Ji-Hoon, A Growing Team

A Black Knight is an undead knight in the Haunted Estate and of the Undead Alliance with an elite attack skill, which it could do very well and strong than any type of soldiers when he use melee weapons, grenades and firearms.