Kai is the red ninja. He is the master of fire. His golden weapon is called the fire sword. Kai also has a sister called Nya, who is also a ninja. Kai and Nya got their powers from their parents.

Nya is the master of water, so she is “the water ninja”. She does not have an elemental weapon because she discovered her power later than the rest of the ninja. Before that Nya was a warrior called Samurai X and had a big Samurai suit! She later became the water ninja because in season 5, she discovered her past and where she came from.

Before Lloyd joined the group and became the ultimate ninja, Kai was the main ninja. He was the one who led the group into battle! (Kai is on the right and Nya is on the left)