Ninja World: I fought the five Kages hard, and then the system came

Yuro Gengetsu traveled to the world of Naruto and became a big figure in the ninja world with his own efforts.
Until one day, the five shadows who had just been listed unethically attacked him together, and the system finally appeared, saying that it could help him counterattack and become the strongest in the ninja world.
But...
Yuro Gengetsu, who was about to fight the five shadows, silently looked at the first task issued by the system.
[The counterattack of the ninja school has begun! Please defeat your last-place classmate, Uzumaki Naruto. ]
"System, do you know what year it is today?"
[The 60th year of Konoha]
"It's the 2nd year of Konoha! Is there something wrong with your system!"
...
Several years later, Yuro Gengetsu opened his eyes again, standing on the roof of the Chunin Exam, looking at the third generation of Hokage who was facing a formidable enemy in front of him, and his mouth curled slightly:
"Although it's a few decades early, I finally arrived."