Katsura and Katsuraya, two rivaling well-established Japanese sweets shops, are located next to each other. The two successors to these rival shops, Takahiro and Kazushi, are currently not on good terms. Takahiro believes that Kazushi has far more skill in creating sweets than his own clumsy self. So when Kazushi randomly decides to stop making sweets, Takahiro decides that what he has done is a declaration of war.
