Enhanced Sustenance Technique

A technique that burns a user's chakra in the place of whatever nutrition or physical needs a body might have. Using this technique, a user will no longer require food, water, rest or even sleep. As the user stops the intake of food and water, one will stop needing to pass excrement as well, or even sweat and other minor effects. The user will effectively be eternally clean and never need for a shower again, and dirt and dust flows right off one's body.

Possessing the ability to let the user's harsh environments as well, a user can stand in the middle of the arctic with no clothes feeling warm and cozy, or be under the scorching summer sun clad in layers of winter wear feeling nothing but cool satisfaction. More extreme temperature changes, of course, requires more chakra, but there's no limit to this as long as enough chakra is provided. This allows the user to be simply immune to environmental damage as long as one has the chakra to stay that way.