Well if it's kenjutsu only, Suigetsu can't liquefy can he?wait wtf only swords? Suigetsu obviously shits. He can't be hurt by kenjutsu.
Well i guess you're right. But i think Suigetsu is the result from orochimaru's experiment and his body is made of water. I mean i doubt that he kept such a high class ninjutsu 24hs without restingWell if it's kenjutsu only, Suigetsu can't liquefy can he?
It's classified as ninjutsu and i don't think it's an automatic thing.