Board Thread:Theories and Speculation/@comment-32148934-20171101034532/@comment-24886865-20171213190312

I don't think it is. we would know if it was. but it was stated that Jinpachi and Kushimaru was the same gen of swordsmen who knows?

Also he has the same uniform as Ameyuri so it is reasion able she was before raiga.

Also for Jinpachi to kill his brother then that would mean this brother would have to beat 8th Gate might dai. and we know only Fuguki, Juzo and Raiga did.