Doraemon (1979)

Farewell Nobita (5x32)

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Feeling jealous of Shizuka showing feelings for a friend transferring, Nobita uses the What-If Phone Booth to make it such that his family are transferring to America. But when his friends - especially Shizuka- express their grief for him leaving, Nobita realizes his mistake and tries to use the Booth to undo the incident. However, the machine breaks leaving Doraemon to find a way to fix it before he and Nobita's family move to America for good. This episode would be remade as "Goodbye to You" in 2004, and both would be remade as Goodbye to You in the 2005 series.