An Idiot's Guide To Time Travel

When Obito reads a scroll to learn some new jutsu, he finds a rather simple one, but there's a problem, the scroll doesn't say what it does. Read as we follow Obito and his new friend jump throughout the different era's, from the Third Shinobi World War to The days of the Sage of Six Paths, Just what have you gotten our favourite character into Obito?
Fem!Naruto x Obito is the ship, Hate it then don't read it. Of course that means Naruto has been genderswapped.