Realizing they cannot win by force, Shizuka and Riruru use a to travel 30,000 years back in time to Mechatopia. They find the professor who created the first robots and explain that he must give them a "heart" and the capacity for love and empathy .

They step out into a frozen, snowy landscape. Instead of a human friend, they discover a gigantic, humanoid robot buried in the ice. They bring the robot back to Nobita’s house. Using Doraemon’s gadgets, they repair and reactivate him. The robot introduces himself as Zanda Claus . He is gentle and kind, and he quickly becomes friends with Nobita and Doraemon.

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