Werther focused on the Armament Haki option.
Armament Haki (19) (This ability can be strengthened with life force.)
Werther suddenly hesitated. How much life force would it take to advance from level nineteen to level twenty?
Five hundred thousand? A million? There was no fixed amount.
He did not dare pour in too much life force. Strengthening Armament Haki was different from strengthening his other abilities.
It was far more brutal. If Werther could not withstand it, he might die.
"Phew."
Werther let out a long breath, and the look in his eyes gradually turned wild.
To grow stronger, he had to endure what ordinary people could not. If the process killed him, it would only mean that was as far as he could go.
"Let's see how hard I am to kill."
Werther reached out to the Black Ring with his mind and drew two million life force toward the Armament Haki option.
He had a feeling he could not strengthen Armament Haki from level nineteen to twenty little by little. He had to do it in one go.
If he failed this time, his Armament Haki might remain at level nineteen for the rest of his life.
If Armament Haki were so easy to strengthen, the world would have far more masters of it.
The Black Ring began converting the two million life force. Soon, a surge of scorching energy poured into Werther's body.
The energy was blazing red, somewhat like magma, but far purer, without the slightest impurity. It was more like molten iron fresh from a furnace.
In an instant, cold sweat covered Werther's forehead.
His jaw muscles bulged, veins stood out on his forehead, and blood vessels swelled across his body as his blood raced through them.
No matter how intense the pain