A sudden betrayal made Ye Tianyi see everything clearly: the insidiousness and viciousness of his adopted daughter and sister, and the betrayal of her beloved boyfriend! The demise of the family, the look in his brother's eyes when he left was repeated in front of his eyes, and his boyfriend and adopted sister stabbed her unconscious! When she opened her eyes again, she returned to the age of fifteen and her family had not yet been destroyed. Ye Tianyi vowed to make those who had hurt her pay the price one by one! But, I kill people! Why did you hand me the knife?