The perfect love story

My perfect love story :) See ... She - is the daughter of the emperor of the underworld. He - is the number 1 enemy of the underworld emperor. She is bored with life. She wants nothing, and the only satisfaction she receives is when she makes others suffer. She is seen as a demon even by her father, who does anything for her. But she sees everyone with disgust! He is a 28-year-old man who wants to kill the emperor as revenge for the lost family! He is lonely, harsh and ruthless. No one fits his eyes. He has huge powers, but when he meets the enemy's face, he sees that he is powerless - and to his shame he is forced to become her little boyfriend! But as the story progresses, will the ruthless man be able to offer the love and security of a girl with a heart of stone? How did the life of two people so similar and yet so different evolve?