Give A Heart To The Emperor

Give A Heart To The Emperor is a Manga/Manhwa/Manhua in (English/Raw) language, Manhwa series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.com fastest updating comic site. The Summary is

I went to sleep one day after a reading a romance novel, the next day I woke up to find myself as Charlion, the princess that will soon be mother of the male proteganist in the story i have read!
Yesterday was a very normal day, I couldn't get myself to sleep, so I decided to read romance novel that I liked. It was a rather sweet story. In it, a female protagonist heals the scars that the male protagonist’s parents left on his heart. The mother of that male protagonist was called Charlion, a character that caused the male protagonist lots of mental and physical trauma as a child. The father of the male protagonist was the Emperor, who massacred his way into power, went on to conquer all the surrounding nations.
It was in the fourth kingdom that he conquered, at the royal palace of King Renoa, that he decided to stop his war of conquest. The Emperor fell in love with Charlion at first sight. He took her back with him to the Empire, as spoils of war, and married her. In her eyes, Charlion married the demon who crushed her country and slaughtered her family right before her very eyes. She was forced to become the empress and gave birth to the crown prince, the male protagonist of the novel. In her moments of instability, she abused her child, the male protagonist. And she was left so broken and devastated that she ended up committing suicide.
So can someone tell me WHY DID I WAKE UP AS CHARLION, THE ICON OF MISERY....