Crayon Shin-chan: Such a Chic Shadow Clone

The story describes a woman named Zuyin and a 5-year-old boy who came to the home of Nohara Hiroshi and Miyo and told them that she was the biological mother of Hiroshi and Miyo's 5-year-old son, Shinnosuke. The night the two stayed overnight, the Nohara family was attacked by a mysterious ninja group. Shinnosuke was kidnapped. The Pizu Yin family is the hometown of ninjas, a family that has guarded the earth's energy "Nintru" for generations. As a result, the survival of the earth was left to Shinnosuke's ninja techniques.