With La Puerta Milenaria safe from those who would misuse its power, Mario and his friends were hailed as heroes in the Papercraft World. As they prepared to return to their own world, the Papercraft denizens gifted them with a special reward – a magical copy of the game's data, encoded in a Switch NSP XCI file.
Mario found himself in a world where buildings, trees, and even the ground itself were made of a thin, papery material. The inhabitants of this realm, the Papercraft denizens, were friendly and welcoming. They informed Mario that their world was threatened by the dark sorceress, Sir Grodus, who sought to exploit the power of the ancient door.
Finally, after many trials and tribulations, Mario and his friends reached La Puerta Milenaria. With the eight Shine Sprites in hand, they unlocked the door and discovered a hidden chamber filled with ancient secrets and powerful artifacts.