If you are going to make 4 ninjas of: Tsunade, Jiraiya and Orochimaru you should change the name. Sannin means 3 ninjas, there cannot be a fourth, I recommend you put Yonnin
You pass me the page from which you translate this fanfic.
It's boring waiting for someone else to translate it for you when you already know Chinese, (Pass me the page pls)
Better stay in atg, he just reincarnated there it would be boring to leave quickly and as for the next world you could choose tdg, one piece, naruto or fairy tail