Doraemon the Movie: Nobita and the Steel Troops

When giant robotic components rain down from the heavens, Nobita and his trusty companion, Doraemon, decide to take matters into their own hands by constructing a formidable machine known as Zandacross in the mirror world. Unbeknownst to them, this creation holds the potential for great destruction, prompting them to keep its existence under wraps.

As the situation intensifies, a mysterious girl named Riruru emerges, seeking Zandacross for an impending invasion. However, she reveals that she is not aligned with the forces threatening Earth. As Nobita, Doraemon, and their friends rally together, they must navigate a complex web of alliances and confront the looming threat of a robot army, with Riruru as the key to their salvation.