Hkj
Like the idee subduing mito with sealing chains then slapping two top grade fuin on her ( the kind she didnt have the right to learn) 1st totaly sealing off the 9 tales from her and making it impossible for konoha to transfer him to a other host ( basicly kurama dying with his host.. takes years for him to assembel again ;) second slapping a secrecy seal on her brain sealing all knowledge on fuin allso adding a geass on forbidding konoha from possesing uzumaki fuin to mito. Making her spill all fuin related matters to mc.. so he can go and destroy it xF cool if sorta like odin bannishing thor.. -mito clanless traitor off Uzushiogakure.