This jutsu is used by members of the Hitsugi clan, after gaining the water chakra form using Alchemy Body. This is a form of neutral chakra form. its both offensive, and defensive. It cloaks the user to be completely invisible, unable to be seen, or tracked. Chakra sensors can't even sense them. They can be heard though, this is why one must be a completely skilled ninja to not get hurt in this form. This form is in a way kind of like a genjutsu, without the illusion. This is also the only Alchemy Body jutsu that doesn't require a lot of chakra to use.