*Blushes a little*.
What it means to me:
The sword is an extension of the soul, and the art of using it is an expression of it. I live by the sword; kenjutsu is my principle; my nindō.
Known users:
RP - Saitama, You, Sasori
Canon - Sasuke, Mifune, Orochimaru, Hayate, Seven Ninja Swordsmen, Killer Bee, Suigetsu, Tobirama, Darui, Zouri, Waraji and Okisuke.
Chakra effects:
By flowing one's chakra through the blade, they can increase its cutting power and further its reach. It's also possible to use the flow to create ranged arcs of chakra to damage opponents afar. Adding nature transformation also offers many benefits:
Katon - Increases lethality by adding the ability to burn/incinerate opponents on contact, or release a wild burst of flames at mid-range.
Raiton - Enhances cutting power and has the ability to numb opponents, effectively disabling them.
Fuuton - Like Raiton, enhances cutting power greatly. Potentially could be used to make multiple incisions on contact.
Doton - Can be used to make the sword heavier for stronger attacks, or lighter for easier mobility.
Suiton - Using shape transformation, water can be shaped into a sharp stream surrounding the blade, or hardened into ice to increase lethality.