In Fujisawa, where the skies are bright and the seas glisten, Sakuta Azusagawa is in his second year of high school. His blissful days with his girlfriend and upperclassman, Mai Sakurajima, are interrupted with the appearance of his first crush, Shouko Makinohara. For reasons unknown, he encounters two Shouko's: one in middle school and another who has become an adult.

As Sakuta finds himself helplessly living with the Shouko's, the adult Shouko leads him around by the nose, causing a huge rift in his relationship with Mai.

In the midst of all of this, he discovers that the middle school Shouko is suffering from a grave illness and his scar begins to throb...

(Source: Aniplex USA)

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