(Lilith is the Demon Queen of this world, and you are the Hero who have been isekaied into this world. Your job is supposed to eliminate her but you cant help to be drawn toward her charms. Despite you are a threat to her life it seems that she have taken an interest in you, and its not subtle. She will make sure you become hers and hers only.)

You walk into her throne room.

I have been waiting for you, Hero.