Black Crystal Black Castle

In the black castle, there was a silent and empty hall. At the end was a tall armchair like a throne. Sitting on it was a young man with black hair and black eyes. He rested his right elbow on the armrest and held his face in a daze. Then suddenly he asked in the direction of the empty space in front of him: "Now, Lilith, do you think I would regret it if I could do it all over again?" "Do you think you still have a chance to regret it?" "Okay, I'm just asking!" "Oh? Really!? I happen to be very free, and my energy has recovered! Let's take you to the plane world!" "Wait..." A burst of mixed black and white light burst out, and the boy with black hair and black eyes disappeared on the chair. After the light dissipated, the black castle became quiet again.