How do you blackmail the most powerful woman in the village? She runs the place so she can have him killed and disposed of, thrown in the darkest hole no one can escape, and that's not even getting into the sort of things she can do with her super strength and medical knowledge to keep him quiet.
Self insert shit like this is retarded because it all falls apart the second any real logic is introduced. Shit if they at least used a real character then most of the things I said wouldn't even apply, like if it was Naruto, Kakashi, or even Jiraiya she wouldn't even think about killing or getting rid of them, but this nameless faceless dickhead? No.