Dungeon Keeper (NPC)

The Dungeon Keeper is a NPC that can be found at the entrance of the Bloody Dungeon. He dosen’t move in to a house, but sells things after the Cerberus have been defeated.

Overview
He curses you when you start to go inside the dungeon, which that can only be cancelled by defeating Cerberus. Then the Dungeon Keeper allows you to challenge him, and he summons the Cerberus afterwards. After defeating the boss, he admits his defeat and frees you from the curse. Then he sells rare items but dosen’t move in.

Quotes

 * “I’ll never move in. I like here better.”
 * “Do you think (Nurse’s name) likes me?” - When nurse is present
 * “I’ll have to feed my doggie soon.”
 * “Don’t get confused with that skull head in the other world. I hate it!” - Reference to the Dungeon Keeper in the overworld