Chapter 437: The Class Where the Tone Gradually Goes Off the Rails

Upon learning that the ninja world of his opponent could also injure him, Uchiha Madara wasted no words and immediately began forming hand seals in midair.

"Fire Release: Great Fireball Technique!"

Although he had become a ghost, after exploring for so long, he discovered he could still use ninja techniques!

The only difference was that before he had consumed chakra, whereas now he consumed spiritual energy!

After Uchiha Madara shouted, a massive fireball erupted from his mouth.

That fireball was at least seven meters high and seven meters wide!

Seeing this, that group of ghosts exclaimed in awe.

"Truly worthy of Lord Uchiha Madara! Such a huge fireball—could this really be a C-rank ninja technique?"

"This '210' Great Fireball Technique is too ruthless; compared to mine, it's an absolute opposite extreme!"

"Idiot, that is Lord Uchiha Madara! Even the Great Fireball Technique is beyond our comparison!"

"Damn it! Someone's ambushing us! Stop spectating! That bastard named Haku... ah!"

Just as that group of ghosts was thoroughly enjoying the show, Haku also launched an attack.