Sawada Hagoromo traveled to the Naruto world and became a teacher at the Ninja School through "hard work"

The system was not officially activated until I met two children of destiny.

He can be rewarded by teaching and educating people and start his own era

"Uzumaki Naruto officially accepts you as his master, and obtains...!"

"Uchiha Sasuke officially becomes your disciple and obtains...!"

After this, the original trajectory of the Ninja world gradually deviated

In the midst of the four battles, a figure stood in the sky and said calmly, "Everyone? Do you want to dance too?"