Board Thread:Episode Discussions/@comment-1181222-20171004101140/@comment-945885-20171009072436

So, if you look closely during the final scene of this episode, you can see that Shizuma's faction seems to have six members total, which would explain why they want Kagura as their seventh, to complete the new Seven Ninja Swordsmen of the Mist.

We know the names of three of them thanks to a new magazine article: Shizuma Hoshigaki, Hassaku Onomichi, and Buntan Kurosuki. They all wear red pinstripe clothing (as opposed to the usual blue pinstripe clothing of Kirigakure, likely a representation of the Bloody Mist) and at some point they'll also don matching black and tan jinbaori ("war haori").

Hassaku was already introduced in episode 25, and will reappear wearing his forehead protector and a sleeved jinbaori. Buntan is the female member of the group seen fighting Sarada in the intro, wearing a skirt and thigh-highs with her jinbaori draped over her shoulders like a cape; it seems that she's the inheritor of Kiba, as episode 30 is titled "Sharingan vs Lighting Sword: Kiba."

One of the others is shown fighting Mitsuki in the opening: a huge, bald guy with some sort of headphones. The other two are too deep in the shadows to make out any clear details.