Io & Shoseki

Io is a master ninja tool inventor loyal to Konohagakure, whereas Shoseki is his servant/assistant.

Io's shop was located from Konoha to the outskirts of the Konoha Forest, due to their inventions causing a large amount of damage to their local area.

Most of their creations were known to be either un-handleable or actually dangerous to the user, if the pair are unmotivated.

However, when the duo is motivated, they make some of the finest weapons around.

Both Io and Shoseki are actually somewhat talented in the usage of Puppet Ninjutsu, Fuinjutsu and are also good at creating traps.

Their inventions include:

-A double-sided, poisoned kunai that kills whoever holds it.

-A 1000-bladed shuriken that is impossible to pick up.

-A double-handled kunai with no edges whatsoever.

-A sickle-chain, which is basically a kama that has a chain-ball at the tip of the blade.

-A ninja shuriken. Which is basically just a giant, flying shuriken launched into the air that can be controlled by a pilot that is strapped to the shuriken.

-Tsurukame. Which is a turtle-like shield that can eject projectiles of any kind from the segmented outer layer of the shield.

-Dako. Which is a spear that can extend almost infinitely, and can also be controlled by the user.

-Jidanda. Which is a giant metal orb with spikes and a handle protruding from it. The handle can be used to attack targets like Dako, and it can eject exploding spikes from itself like Tsurukame. The exploding blasts may also be used to build up enough propulsion to make the ball and user fly into the air, and slam into targets.