Princess Dia of the Freige Empire was killed by her father, the emperor, on her 17th birthday. Afterward, the emperor embraces her daughter's corpse and freezes the world to destruction. Anna, an office worker of a black company, was reading a novel with a tragic ending before she went to bed. When she woke up the next morning, she had become Dia in her novel?! Of course, her father is the Ice Emperor, who is feared for his cruelty and ruthlessness. Just like in the original, the Ice Emperor mercilessly directs his bloodlust toward his young daughter. "At this rate, she will really die on her 17th birthday... no, she will be killed before that. Trying to change... Why did the Ice Emperor destroy the world while crying after killing his daughter?"