After returning home, Mu Yue opened the scroll the Third Hokage had given him and took a look.
After reading it, Mu Yue discovered that it was essentially an appointment letter for Special Jonin. It bore the signature of Hiruzen Sarutobi, the Hokage, making it somewhat more formal than his Chunin promotion. In the original owner's memories, becoming a Chunin had only required a single sheet of paper. At least a Special Jonin appointment was written on a scroll.
He casually placed the scroll in his study, then began reading the Sealing Jutsu materials Kushina had given him.
The Five Elements Seal was far more difficult than Mu Yue had imagined. As expected of an extremely high-difficulty Sealing Jutsu, twelve days had already passed since he had begun learning the Five-Finger Sealing, yet his Five Elements Seal proficiency was still stuck in the eighties, unable to reach the beginner level.
Mu Yue wondered whether he should use the Ninjutsu Proficiency Scroll on the Five-Finger Sealing. That should allow him to instantly master the Five Elements Seal.
After thinking it over, he ultimately gave up on the idea. Using the Ninjutsu Proficiency Scroll on a practice Ninjutsu with almost no practical use would be too wasteful. It was not as though he could not learn it, and his talent for Sealing Jutsu was indeed quite good.
Mu Yue wanted to save something that could ignore Ninjutsu difficulty and directly raise a technique to the proficient level for high-difficulty Ninjutsu.
If he ever had the chance to obtain the Flying Thunder God and successfully learn its basics, that would be when the Ninjutsu Proficiency Scroll came in handy.
Based on the system's rule that obtaining the same Ninjutsu could stack proficiency, perhaps smashing several proficiency scrolls in a row could produce a