Board Thread:Theories and Speculation/@comment-25122992-20171108205246

Well, recently I've been wondering again about the Seven Ninja Swordsmen of the past (because of recent Boruto episodes) and again faced the main problem of their membership. There are multiple statements that point out in the direction that the Seven Mist Swordsmen reincarnated by Kabuto (Mangetsu, Zabuza, Ameyuri, Fuguki, Jinin, Jinpachi, Kushimaru) never operated at the same time period together, which effectively leads to a conclusion that they can't be even called a single "generation". Here are the most valid of these facts: I perfectly realise that all of this info is anime only. As such, it also opens the possibility of the "strongest generation" intented to be a single generation in the manga, but anime simply messed up the swordsmen biographies. Anyways, any other thoughts and opinions on that matter? 
 * Juzo's statement that only three of his fellow swordsmen have survived the fight against Might Duy, which includes himself, Fuguki and obviously Raiga. At the same time, Jinin and Kushimaru also participated, meaning they got killed, which makes impossible for them to operate with Zabuza and Mangetsu who joined the group only later on.
 * Raiga problem. Although he was a part of the "VS Duy" swordsmen, he wielded Kiba even after Zabuza's/Kisame's defection, up to his own death, which makes no room for any other Kiba wielder, while Ameyuri was supposed to be a one. Yeah, there's a possibility that Ameyuri used the blades for a short time after which they returned to Raiga, but otherwise, it's more logical to assume that she was Kiba's wielder before Raiga. So, again, it's impossible for her to join Zabuza's/Mangetsu's group.