Naruto: Shock to get ninjutsu

(Naruto + System + Subversion + Relaxation + Single Heroine)
Time travel to become Kei Uchiha and get the shock system. Only when people are shocked can they get ninjutsu.
Uchiha: Is this the good-for-nothing from before?
impossible!
The Uchiha clan is proud of you!
Hinata: Good son-in-law, come on!
Forge ahead!
Itachi: Thank you King Uchiha for your help, otherwise I wouldn't be able to become the Fifth Hokage!
Senshou Hashirama: I knew that the teacher is unique in the world!
Uchiha Madara: Only a teacher deserves to dance with me!
Uchiha Kei: Low-key, low-key, I am the man who will become King Otsutsuki in the future!