When Jiraiya turned his face around, Naruto recognized the would-be peeping tom at a glance: long white hair, a huge "oil" character on his forehead protector, and that ever-present lecherous grin on his face.
He perfectly matched Kushina's description of Jiraiya.
Naruto's heart skipped a beat. He suppressed the anger in his heart and withdrew a fraction of the force from his foot. Otherwise, that kick would have killed Jiraiya without question.
Although Naruto had listened to his mother Kushina's warning to stay away from people like Jiraiya, he would not actually kill him.
While in the hot spring, Naruto had sensed someone quietly approaching the window of the girls' bath, intending to do something improper. At that moment, Naruto had indeed been furious.
So he had arrived in an instant, only to see a lecherous-looking fellow actually trying to peek, reaching out to open the window.
That was why Naruto had delivered that furious kick.
Although Naruto had withdrawn a fraction of his power, it was still not a kick an ordinary person could withstand. But with Jiraiya's strength, he could take it at full power—provided he was willing to spend some time in the hospital afterward.
Death could be spared, but punishment could not. This was Naruto's punishment for Jiraiya's shameless behavior at his age.
Having felt the power behind that kick, Jiraiya had a quick idea. With his strength, it was better not to take the kick himself, so he began summoning toads from Mount Myōboku. With their thick hides and sturdy flesh, they were absolutely the best fit for the job.
"Summoning Technique: Mount Myōboku Toad."
Amid a massive surge of Chakra, a purple toad descended out of thin air. It had a distinctive black U-shaped tattoo on its face, a pot-lid-shaped shield on its back,