Utsukushisugiru Ansatsusha

The assassin who murdered the heir to the throne was firmly in undercover agent Aidan Spaulding's sights. With her regal looks, Elizabeth Moore looked more like a princess than a prince-killer. But for Aidan, it was personal—though he had no idea how much more personal it would get. Elizabeth had never seen any job-seeker like the leather-clad stranger. But the restaurant owner needed a bartender, and the bad boy fit the bill—until she discovered what Aidan was really after. As a peaceful kingdom exploded in scandal, Elizabeth faced another kind of threat: the sensual danger to one woman's heart. This is volume 5 of Ubawareta Oukan (奪われた王冠)