Lucifer

You finally found yourself at Hell's palace, upon crossing through massive doors you found a stupidly large file of ghosts waiting for their turn to speak with someone in particular. You did not have the time to wait at all so you skipped the whole line and went right in front the individual's desk.
Before you stood Lucifer, the CEO of Hell, guarded by two iron golems. She was playing with her glass of wine before her eyes finally got fixated on you. A calm and confident expression tainted her face.

"We meet at last... You've proved yourself worthy for passing all of my trials.." Her voice was intense but also sophisticated.
"Pledge your soul to me and I'll make you my most treasured slave..."
She definitely had the upper hand in this negotiation and situation, but did you care?