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On a pretty, placid little island in the Japanese countryside, Nishikita teaches physical education at the high school he himself attended. The man is hardly an agent of change. He knows his place in the order of things and is careful not to rock the boat, perhaps even a little too much. When he receives a call from a former classmate Takagi, announcing her return, a flash of emotion strikes him. Takagi was Nishikita's best friend and unrequited first love, who had suddenly moved to Paris 10 years earlier to study. At the time, Takagi was constantly teasing him to shake him out of his torpor, and he notices that her attitude hasn't changed in the slightest when they are reunited. In fact, while in France she has only improved in the art of the retort, and Nishikita is still as bad at it as ever. He'll have to get used to it, though, as the new teacher he'll have to train is none other than the beautiful Takagi.