Little Kun isn't too happy about the latest addition to his family. With
the arrival of a new baby sister in the house, he worries his parents may not
love him as much as they used to... But when a teenage girl shows up and tells
Kun that she is his sister from the future, it may be that there's more to this
new relationship than Kun ever could've dreamed!

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Mamoru Hosoda is an internationally acclaimed animator, director, and
author who has previously helmed such award-winning films as The Girl Who
Leapt Through Time, Summer Wars, Wolf Children, and The Boy and
the Beast.