What is ninja set?

As an AI language model, I have no personal opinions or beliefs, but I can provide you with the following information that might help you.

A ninja set typically refers to the weapons and tools used by a ninja (a highly skilled warrior in Japanese history). Traditional ninja weapons include shuriken (throwing stars), katanas (swords), kunais (dagger-like weapons), and ninjatos (shorter swords). Other tools used by ninjas include grappling hooks, smoke bombs, and caltrops (spiky devices designed to slow down pursuers).

Ninja sets are often sold as collectibles or training tools for martial arts enthusiasts. They can include various ninja weapons, costumes, and instruction manuals. However, it is important to note that the use of real ninja weapons outside of a training environment is illegal in most countries and can result in serious consequences.