Japan will use ninja to help boost over the next few years. Ninja will promote Japan and ninja in the run-up to the 2019 Rugby World Cup and the 2020 Tokyo Olympics. Ninja are a symbol of Japan and many people around the world know about these dark-clothed who are great at fighting and can run across rooftops at great . Several ninja gave an of their skills on Wednesday when a of them "sneaked" into the of Japan's Prime Minister Shinzo Abe. This was the start of the ninja tourism . Mr Abe joked with the ninja. He said: "Even though you're all wearing such bright colors, you were still able to slip through the tight of my office."
A ninja was a kind of agent, spy and fighter in Japan. He or she was a who was skilled in many areas. The main of a ninja included assassination, fighting, infiltration (getting into an enemy area or building), sabotage and spying. The first ninja appeared in the 15th century when they helped warlords win and get more power. In the 19th century, ninja became figures in art, and early manga. Artists and writers surrounded them in and gave them legendary abilities, such as , walking on water and being able to control the elements. Today we see them around the world in movies, cartoons, comics, games and .