On her wedding day, the Crown Prince mistakes her vain elder sister for the woman who once saved his life. He publicly snatches the bride away and takes her into the Eastern Palace, while Song Wan, the true rescuer, is abandoned and forced to marry the newly appointed top scholar. Facing her elder sister's arrogance and the Crown Prince's unjust humiliation, Song Wan, who grew up in the countryside, remains dignified and unyielding. With her medical skills and determination, she carves out a life of her own despite adversity. When the truth finally comes to light, the Crown Prince bitterly regrets his actions and desperately begs for forgiveness. But Song Wan firmly rejects the wealth and power of the imperial family, only to find herself trapped in the Eastern Palace. Surrounded by towering walls and oppressed by overwhelming authority, how can this defenseless young woman escape her predicament and reclaim the glory of the countryside that rightfully belongs to her?