[Synopsis of the First Volume]
A modern office worker dies suddenly and transmigrates into the body of Helian Si, an inconspicuous three-and-a-half-year-old princess in a dynasty famous for being one of the shortest-lived in history. The moment she opens her eyes, she binds herself to the “Wise Ruler Training System.” Its beginner mission is to reform her tyrant father, Helian Yu, a ruthless killer who murdered his own family and slaughtered his ministers, and survive until the age of five.
To stay alive, Helian Si nervously sneaks into the imperial study every day, clings to her father, and calls him “Daddy” in a soft little voice, while grumbling furiously in her mind. Until one day, the sinister emperor pinches her chin and sneers, “Little thing, dare to call me a tyrant in your thoughts again, and I’ll twist your head off.”
Helian Si is terrified out of her wits: How can he hear her?!
From then on, she gives a full performance in front of the tyrant, with a daily inner monologue worthy of a drama queen. She has no idea that those “thoughts” have already become the only amusement and glimmer of light in the tyrant’s dull, bloody life. While listening to her mutter about “the King of Hell” and “how hard it is to get a meal,” he quietly allows the head of the hidden guards, Xuanying, to deal with the palace staff who mistreat her, lets the gentle imperial physician Pei Qingrang care for her, and even personally picks her up and declares his protection when her spoiled elder princess sister bullies her.
From desperate fear for her life to being quietly indulged, Helian Si grows up innocently amid the terror of being “read” and the tyrant’s increasingly awkward concern for her. Her unintentional thoughts save loyal ministers, while her childish actions avert crises. Like a faint but stubborn beam of light, she shines into Helian Yu’s frozen heart and the blood-soaked imperial court.
But poisonous schemes fueled by jealousy in the harem and the lingering fires of unrest at court are closing in. When the shadow of poisoned pastries at the Mid-Autumn Palace Banquet falls over them, and a sudden disaster during the autumn hunt sees her carried off by pounding hooves… the tyrant who once treated human lives like grass reveals, for the first time, a terrifying madness: he would drench heaven and earth in blood for the sake of one person.