The Terrifying Super Uzuhiko Rasengan! Five Hundred Meters of Terrifying Lethality! (Extra Chapter)

Minato Namikaze came to his senses at that moment as well. He seemed to have just agreed to something incredible.

However, when he saw the Super Uzuhiko Rasengan, he thought it over and decided not to stop him. Instead, he looked around, left a Flying Thunder God mark on the clothing at Yuki Yuichi's shoulder, then ran several hundred meters away and left another Flying Thunder God mark.

With a Rasengan like this, he feared its power would be too great. He might as well leave a Flying Thunder God mark somewhere else—if it went out of control, he could still take Yuki Yuichi and run.

If its power was truly too great, he could even take Yuki Yuichi straight home.

After making all the preparations, he returned to Yuki Yuichi's side and watched him pour chakra into the gigantic Rasengan.

Five meters, ten meters, fifteen meters, twenty meters.

Finally, before his very eyes, the massive Rasengan became a terrifying thing thirty meters in diameter.

Minato Namikaze's voice trembled slightly. He had seen plenty in his life, but this was one sight he had truly never encountered before.

Meanwhile, in the Hokage Office, Sarutobi Hiruzen stared at the image in the crystal ball and fell silent.

The pipe between his lips was nearly sucked into his mouth with a sharp inhale.

"Is his talent for developing ninjutsu really this terrifying?"

He knew about the Rasengan. It was an A-rank ninjutsu developed by Minato Namikaze, with Yuki Yuichi providing the inspiration and Jiraiya assisting.

But what the hell was that gigantic Rasengan inside the crystal ball?

He could not comprehend it.

He had not been paying attention to Minato Namikaze and Yuki Yuichi in the first place.

But the crystal ball had just alerted him to an abnormal chakra fluctuation within