Mu Yue quietly made his way deep into the forest, keeping his Byakugan activated the entire way and confirming that there were no other ninja nearby.
Mu Yue first tested using Armament Haki without activating the Eight Gates. He gathered Chakra in his hand, then swiftly performed Nature Transformation.
As Chakra flowed, Mu Yue's right palm was quickly covered in a layer of black material, making it look as though he were wearing a black glove.
Mu Yue took out a kunai with his left hand and forcefully stabbed it toward his right hand.
Clang!
The moment the kunai struck the palm covered in Armament Haki, it jolted violently as if it had hit something incomparably hard. It could not pierce even a fraction of an inch.
Mu Yue infused Chakra into his left hand, imbuing the kunai with Lightning Release to greatly increase its power.
Crackle! Crackle! Crackle!
Brilliant blue lightning enveloped Mu Yue's palm, continuously striking the hand covered in Armament Haki.
Yet although that black layer might have been as thin as paper, it possessed incredibly powerful defensive strength. Even after several minutes of continuous Lightning Release, nothing happened.
"The defensive power of Armament Hardening is impressive." Mu Yue nodded, acknowledging the defense of this Armament Haki adapted to the Naruto world.
Mu Yue actually knew a Ninjutsu somewhat similar to Armament Hardening, a technique called Earth Release: Earth Spear.
This Ninjutsu could harden the body, increasing both defense and attack power.
Mu Yue compared Earth Spear with Armament Haki and found that Earth Spear's upper limit was far lower than Armament Haki's, whether in attack, defense, or versatility.
Earth Spear only had an ability similar to hardening. It could not be applied to weapons, nor could it enhance attacks as dramatically as Haki could.
Earth Spear's