The Ninja is the 7th Rank in the game. It costs 475T coins, and it gives a 15x ninjitsu multiplier. It can be purchased for 308.7T coins if you own the Masterful Wrath Element and the Blazing Entity Element. Equipping this rank will emit a blue aura around the player's torso and arms, as well as blue flames from the player's torso and hands.
The Master Ninja rank can be unlocked upon purchasing this rank.