[ And now comes the damage control. ]

Not entirely the Lucifer here. It was the Lucifer from my world—and I didn't even ask him to. All I did, while looking upon my portrait, was make an idle wish that the portrait would age and grow old, while I remained as young as I did on the day Basil painted it. I never thought it could happen in the first place, let alone cost my soul.

Of course, I don't regret it.