Private investigator Taylor happens to hit an extremely handsome man who jumped in front of her car. He asks her to take him back to her place. As soon as he knows Taylor's profession, he makes an unexpected remark: "I am Alexander, the crown prince of Vashmiran. I want to hire you to find the person who tried to assassinate me." They infiltrate the embassy together, disguised as a married couple. Her days with the playboy prince and his sweet smiles make her heart flutter?