In Tokyo, the creator of the famous Léger Wine Guide and emblematic figure in oenology, 60-year-old Frenchman Alexandre Léger, has just passed away. His only daughter, Camille, lives in Paris and hasn't seen her father since her parents separated when she was a child.
After flying to Tokyo, Camille realizes her father has left her what experts call the greatest wine collection in the world. But to claim the inheritance, Camille must compete against her dad's student, a brilliant young oenologist, Issei Tomine.
The duel of biological daughter versus spiritual son is about to begin. There are three tests related to wine tasting that will decide the winner who will take ownership of Léger's empire. But with Camille not knowing anything about wine, how can she win?