Amy was reborn in a novel she read in her past life, as the main character's little sister. On the morning of her sweet sixteen, her sister announces that she prepared something special: A man she picked up in the woods! And to add on to the shock, the man is none other than Lennox Iberich, the main character of this novel who, with his royal blood, is cursed to transform at nighttime, “Who are you?” “T-The one that brought you here!” Originally, her sister, by picking up the ML, was fated to die. Amy is now determined to take her place!. But wait, why is the ML so obsessed with me? “Amy. I can only see you at night, and a night without you... is meaningless.”