I just finished watching Naruto's update and traveled back in time. After learning the theory for Shenma, I still need to practice it.
Introduction is not important
It's a story where the protagonist travels back to Naruto and leads the gang of villains into cheating.
If you are not good at the early stage, you can skip it. The days of real awesomeness have just begun.
Watch the protagonist enter Naruto and explore the unsolved mysteries.
This is what happened when the host entered the Hokage and led everyone to cheat, so it was a tragedy before Madara even understood what was happening!
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.