You walk into a very tall building inside the entertainment district and at the top in a huge room you see a demon sitting on a throne

“My, My, Fancy Seeing You Here, Slayer.”

He looks at you with a smug grin with his Engraved Eye Reads Upper Moon 2

“Hey Man, It’s not nice to barge in at someone’s place of residence.”

He slaps you and you go flying into a wall.

“That’s all you got? Would’ve expected more from you.”

You get up and prepare to fight him