Summary
After achieving the pinnacle of martial arts and enjoying immense wealth and pleasure, Kang Hee-ran—granddaughter of the master of Black Astronomy—is betrayed and killed by her stepmother. Miraculously, she awakens in her younger body, determined to live a quiet, kind life with her devoted nanny. Her revenge begins by subtly molding her half-brother, Kang Lun, the future underworld king, into a man loyal only to her. She thought she wanted a peaceful life, but destiny has other plans.