Crayon Shinchan the Movie: The Tornado Legend of Ninja Mononoke

One day, a woman named Chiyome Hesogakure arrives at the Nohara household with a child named Chinzō. She claims to be Shinnosuke's real mother and takes him to a hidden ninja village. There, the Hesogakure family has guarded "the earth's navel" for generations, sealing it with a pure gold plug using their ancestral "Mononoke technique." If the seal breaks, the earth will wither, its rotation will halt, and the world will lose its "tomorrow." Shinnosuke must uncover the truth about his origins and protect both the earth's future and his family's "tomorrow."