Hokage: Ninjutsu Can Only Be Gained By Being Shocked

(Hokage+System+Subversion+Easy+Single Female Protagonist)

Traveling through time and becoming Uchiha Jing, you get the shock system. Only by shocking people can you get ninjutsu.

Uchiha: Is this the loser from before? Impossible! The Uchiha clan is proud of you!

Hyuga: Good son-in-law, come on! Forge ahead!

Itachi: Thank you Uchiha Jing for your help, otherwise I wouldn’t be the Fifth Hokage!

Senju Hashirama: I knew that teacher is a unique existence in the world!

Uchiha Madara: Only teacher is worthy of dancing with me!

Uchiha Jing: Keep a low profile, I am the man who will become King Ōtsutsuki in the future!