My Bandit Lover is the Emperor Ep. 4

Princess Serena is sent to marry into the rival kingdom of Karnak—only to be captured by the bandit, Killian Young. She fights her way into the royal palace, but discovers the emperor bedridden… and identical to Killian, who enters the palace in disguise. With the powerful regent Victor Ewing lusting after her, Serena must play a dangerous game of seduction and strategy. From bedchamber to throne, she becomes the bait—and he, the shield.