Lightning Release, Kirin

Whoosh!

A figure clad in blue armor flashed past, appearing behind Kakashi in an instant. A sharp longsword was clenched in the blue figure's hand.

The longsword tore through the air and stabbed straight toward Kakashi.

"So this is the Flying Thunder God Slash recorded in the Book of Seals!"

Just as the longsword was about to pierce Kakashi's body, his figure flickered and vanished from the spot.

In the next instant, he appeared behind the Second Hokage as well. With almost the exact same movement, his long blade sliced through the air and slashed directly at the Second Hokage.

Although the Second Hokage was weaker than him now, Kakashi could not defeat him in a short time. So, he changed his approach. Rather than thinking about how to beat his opponent, he began learning from the Second Hokage.

The other man's formidable Water Release ninjutsu and his use of the Flying Thunder God Technique were both things worth learning.

Especially the Flying Thunder God Technique. Although Kakashi had barely mastered it, even now he remained at the first stage. When fighting enemies, he mostly used it as an escape technique.

He rarely used it offensively.

But now, from the Second Hokage, he gradually learned something new—like that Flying Thunder God Slash just now.

Flying Thunder God Slash was a ninjutsu the Second Hokage had developed based on the Flying Thunder God Technique. He first used space-time ninjutsu to move to an enemy's blind spot marked with a Flying Thunder God formula, then struck the enemy's vital point at lightning speed.

Used properly, this technique could end a battle early.

After several attempts, Kakashi had barely managed to grasp the technique.

Slash!

Perhaps because an Impure World Reincarnation body was too sluggish, the Second Hokage failed to evade Kakashi's attack.