Set in the magnificent world of medieval Europe depicted in paintings. Doraemon and his friends jump into the "world of the painting" joined by Claire and her friends Milo and Chai as they emabark on a great adventure!.

Doraemon, Nobita, and friends as they enter a painting into a medieval European world. In the painting, they meet Claire and Milo, children from the country of Artoria. They also encounter a small demon with wings named Chai. Together, they face a powerful enemy for a legendary jewel.