Shuriken is the symbolic Ninja tool that comes to everyone's mind at first. In historical dramas, Ninjas are often depicted as holding both hands horizontally in front of their bodies and firing a series of shuriken. However, this method of striking is said to be a misrepresentation. In addition to shuriken, Ninjas also used a variety of tools in various situations. Some were used to defend themselves, some to attack, some to climb walls, some to make fire, some to pry open doors, some to cross water, and some to disguise themselves. Ninjas, who had to survive and bring back information at all costs, used their tools in a variety of ingenious ways in their tools. In this program, navigator Tsuruno Takeshi will experience the original use of shuriken and learn the types and uses of the Ninja's “six ninjutsu tools.”