But your precious king WILL fall to the Darkin...
??? wears a menacing black trenchcoat with a black scarf. He has pitch black skin and hair, and wears a black helmet with a red and gold mask. His weapons of choice are two red bastard swords, and he seems to have some form of teleportation magic. He is a very dangerous individual, as when he arrived the King seemed shocked, and the Masters immediately equipped their weapons and defended the King.
As explained by Slicer in Chapter 7, ??? is a member of the Darkin, an evil organization and primary antagonist of BFS. He is one of the 6 core members.
-??? will undoubtedly be a boss in a future chapter.
-??? is the most likely culprit behind King's kidnapping in Chapter 7. This means that we will probably fight him in Chapter 8.