Oak's strength had already been terrifying, and after being further enhanced by the Cause-and-Effect Fruit, it had practically reached the point where his every movement could affect heaven and earth.
"Ding~"
The Hellhound sword, wrapped in powerful Haki, collided with the Xingtian Axe. The two immense forces crushed the sea below downward from afar, causing the ocean across a vast area to sink in unison.
This time, Oak did not retreat. The force erupting from Imu's Xingtian Axe could no longer do anything to him. The two remained locked in stalemate, yet their other hands were not idle either. The Seven Star Sword and Heaven Punishment Sword continuously unleashed slashes, scattering black lightning and green Demon Fire throughout the area.
Perhaps because the Seven Star Sword could not be dealt with, and the Heaven Punishment Sword's lightning could not inflict any substantial damage on Oak, Imu put that sword away.
"Grudge Demon Sword."
A streak of pitch-black Demonic Aura crawled up the Xingtian Axe and onto the Hellhound sword, then attached itself to Oak. Before Oak could react, Imu pulled another weapon from his ring of Demonic Aura and tossed it behind him.
"Whoosh~"
In an instant, the weapon flew countless meters into the distance.
Imu formed a circle with the index finger and thumb of his free hand, placing it over his left eye. He formed a hand seal and created bell-shaped Demonic Aura. The bell-shaped aura aimed at the mass of Demonic Aura on Oak's body, and the two automatically aligned into a straight line. Imu leaped backward to make room.
"Whoosh~"
A ten-thousand-meter giant sword wrapped in Demonic Aura came attacking from behind, aimed directly at Oak as it unleashed a thunderous strike. It was the Grudge Demon Sword, the new weapon Imu had thrown earlier. After