Lucky Milfeulle wins a free dinner at a fancy restaurant and brings Normad along as a date to teach her table manners. On the way there, they chance upon a pastry stall and Milfeulle is impressed with the delicious pastries. She finds the legendary Le Grande Asede, a rare pastry and sees a pastry robot behind the stall. She begs the pastry robot to teach her how to bake the cake, but robot's life is being threatened by assassins because the robot discovered the owner's secret. She tries to rescue the robot despite the robot telling her to let go. They find a place to condone baking lessons, but the assassins find the robot and kill it. However, the memory is intact and the owner's secret is leaked. A replacement robot is also built.
高級レストランのディナーチケットが当たってノーマッドと共に出掛けたミルフィーユ。しかし、途中のケーキ屋で見つけた、幻のケーキ"グランダルシェ"のレシピを知る超高性能調理ロボット"J2"に弟子入り志願してしまうミルフィーユ。だが、J2は何者かに狙われていたのだ!