She was once the beloved legitimate daughter of the Grand Tutor's household, raised in luxury. But when disaster struck, she became the lowest of the Eastern Palace's drug slaves. Everyone could bully her, and every day she was made to test poisons. She lived worse than a dog in the Eastern Palace. Until the day the poison took hold and she collapsed at the Crown Prince's feet. He wore a golden crown in his hair and a dark brocade robe. Pinching her chin, he smiled faintly. “My Eastern Palace does not keep useless people. Want to live? Then... become my Crown Princess.” She lowered her eyes, swallowed the blood rising in her throat, and answered in a trembling voice. All of the capital said she was lucky, rising from the mire to the heights in one step. Only she knew that the antidote bottle that slipped from the Crown Prince's sleeve that day bore her father's mark, the old emblem of the Grand Tutor's household. So this game had begun the moment she first set foot in the Eastern Palace...
It's that kind of indescribable love where each other learns from each other,