so i actually loved this episode, which was surprising considering i'd read a bit of spoilers before watching.
watching that little girl go hardcore nasty bitch on the poor praying Mantis Guy.... holy cow, i haven't been that struck by epic murderous moe in years...
it seems like the theme of this episode was: "Those guys who are acting like heroes are gonna die". it was a bit more subtle for the commander "I'll go on ahead. I'm the strongest and the leader, after all." "You guys have no regrets, right?" but I like how they started really pouring on the THis Guy is Gonna Die cliches with the butterfly ninja. If there's one thing I've learned from anime, it's that you never quit smoking (or drinking) or arrange to get married unless you've got top billing...
i probably would have been furious if i'd watched this episode without knowing i'd not see the fight against "the strongest swordsman", but knowing what i did, i thought it was actually quite clever (if not a ridiculous troll) to just show us the fight concerning "the strongest" and not the fight for the sword...
edit to above: the comments about the Father seem to be pointing in Ryl's direction. he expressly says that the reason he is not training Nanami (sp) is not because she is a woman or because she is ill. he says he is going to spend his entire life and all of his energy, until his body decays, so that Shichika can learn their fighting style.
the problem is this. he says "I really wanted yo (Nanami) to become the head of the Kyotoryuu style, but that is not possible." There's a difference right after with Muri and Fukanou (literally no reason/logic (as in the mind) and fukanou (no physical capability). He uses fukanou to talk about her becoming head of the Kyotouryuu style. Because he is unable, and that is why i think Ryl has the closest interpretation, that he's frustrated and intimidated by her mere presence (and, thusly, more than a little bit afraid of her). I think it's understandable that the Maniwa Mantis was looking at her in that same light, that he thinks it's impossible (and frightening and shameful, because i think he somewhat understood that she'd used his own ninpou against him after seeing it only twice) that he could encounter such a monster or a person
of course, the true mystery is why Nanami's ridiculous skill and power excludes her from becoming the heir to the family (it's not just a matter of her father being unable to dedicate himself to her, it's that he thinks she would not be a suitable family head)...