Chakra Enhanced Durability

This technique was developed by Tentei Uzumaki. It works by threading one's chakra throughout their body and using it to strengthen their body's durability. Most users are capable of using it to an extent that allows their skin to harden to an extent where non-enhanced shuriken and kunai simply deflect off of their skin. Tenkei is able to strengthen his skin enough that even shuriken enhanced by wind release will barely penetrate his skin, leaving only a small puncture wound, and making non-enhanced weapons completely ineffective. Additionally, while most users can only strengthen their skin, Tentei can strengthen his entire body, both inside and out, meaning even if his skin is punctured or bypassed, his insides will be able to take much more damage before failing then they ever could normally, although his internal organs still won't be as durable as his enhanced skin is. His bones are enhanced as well, gaining durability on par with Shikotsumyaku users.