Doraemon Movie 27: Nobita no Shin Makai Daibouken - 7-nin no Mahoutsukai

Tired of struggling with science, Nobita uses Doraemon's What-if Phone Booth to create a world where magic developed in place of technology. Unfortunately, everyone else seems comfortable with spells while Nobita remains just as clumsy as before. He soon wants to undo the wish, but the booth is thrown away before he can restore the old world.

Professor Mangetsu and his daughter Miyoko then warn Nobita and his friends that a demonic planet is approaching Earth. Ancient writings describe a way to defeat the ruler of that world, but the threat becomes immediate when demons strike and Miyoko is taken. Doraemon, Nobita, and their friends must enter the magical underworld themselves, carrying the only hope of preventing Earth from falling under its ruler.