Yumi Kakazu

Nobita travels to the future to show his beloved grandma his bride, but adult Nobita has fled his own wedding.

Sewashi and Doraemon find themselves way back in time and meet Nobita. It is up to Doraemon to take care of Nobita or else he will not return to the present.

While Nobita is sleeping, he suddenly feels the floor is trembling, like there would be an earthquake in his room. A little rabbit from an alternate universe named Chamii opens the door ...

When Nobita turned the world into a world with magic with the what-if-telephone-booth-gadget, He and his world needed to defeat the threat that became reality in this world.