Everyone's talking about the white shadow the lunar probe spotted. Nobita insists that it's the legendary rabbit on the moon, but everyone just laughs at him. That's when Doraemon gives Nobita his secret "Fringe Theory Club Badge" to create a rabbit kingdom on the other side of the moon. That same day, a mysterious boy named Luka joins the school, and ends up going with Nobita to the rabbit kingdom.

And with that, Doraemon's adventure on the moon begins!