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Nobita is focused on his summer homework—a drawing—even as news breaks of a painting worth billions of yen being discovered. Suddenly, a torn piece of a painting flutters down in front of him. Using the secret gadget "Art
Access Light," they enter the drawing and explore, where they encounter a mysterious girl named Claire. At her request, Doraemon and his friends set off for the Principality of Artoria—which turns out to be none other than the
medieval European world depicted in the very painting that's been making headlines!

And it seems a legendary jewel called "Artoria Blue" lies hidden somewhere in that world.

What exactly is the Principality of Artoria, this world within the painting?

Doraemon and his friends set out to uncover the secret of the legendary jewel. However, a legend of "world destruction" passed down in the Principality of Artoria is reawakened, plunging them into great peril!

Can Nobita and his friends truly defy the legend and save the world?!

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