They meet , a perfect, emotionless cat-like robot who acts as the utopia’s guide. But as usual, Nobita’s gut feeling kicks in. A world without flaws is also a world without effort . The gang soon discovers that to maintain this "perfection," Paradapia is erasing the very emotions that make us human: sadness, frustration, and even joy.

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However, the group soon learns that Paradapia’s harmony is maintained through a sinister mind-control system designed by

The story kicks off when , tired of his everyday failures, hears about the legendary concept of "Utopia"—a land where everyone lives happily without conflict. Determined to find it, he enlists Doraemon’s help. Using the Time Zeppelin , a massive airship equipped with time-jump capabilities, they embark on a journey across different eras and skies.