Yeo-ju is a writer of a novel about a nine-tailed fox. Because of a recent accusation of plagiarizing other materials, she is afraid of writing new work. One day, she sees a handsome guy at an accident site and gets inspiration for the new novel's male lead. She follows him and arrives at Nail Shop Paris, a nail salon that handsome guys provide nail care service. And the guy, Alex, is one of the nail artists working there. Yeo-ju is determined to find everything about him, so she disguises as a man to get a jog at the salon.

Yeo-ju is a writer of a novel about a nine-tailed fox. Because of a recent accusation of plagiarizing other materials, she is afraid of writing new work. One day, she sees a handsome guy at an accident site and gets inspiration for the new novel's male lead. She follows him and arrives at Nail Shop Paris, a nail salon that handsome guys provide nail care service. And the guy, Alex, is one of the nail artists working there. Yeo-ju is determined to find everything about him, so she disguises as a man to get a jog at the salon.