Set against the backdrop of 2027 Kyoto which shows the effects of massive techno-logical advancement, the story follows a shy high-schooler, Naomi (voiced by KITAMURA Takumi), who meets a mysterious man who claims to be his future self.

This future Naomi tells him that he will fall in love with his classmate Ruri, and that Ruri will be killed in a subsequent accident. Naomi struggles to change the future in order to save Ruri's life, as he learns Naomi's true purpose and the secrets of his world.

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