Some character thoughts:
Shiho: can you imagine going on vacation with her? She seems the type to plan for 26 [sic] hours of activity in a day. An attack dog approach to having fun. Then again, the glimpses of her in SSGirls did seem calmer; maybe dating Aki will mellow her out. That said, good luck to Aki: Shiho seems likely to be stuck at 100% in whatever she does, and emotionally volatile to boot. I won't accuse her of random mood swings, but hypersensitive to little things like "you looked at Asanagi for 0.1 seconds too long". I hope I'm wrong, but the greatest enemy of Shiho's happiness has been and will always be Shiho.
Himari: So while I was thinking about Shiho, I had the thought that Hima is similar in a way. This seems odd as they're very different: Hima lack's Shiho's sarcasm, bitterness, competitiveness, and self-destructive qualities, and it seems odd to call Hima an attack dog. Hima's a sweet little cutie. But she's also direct, maybe even more so than Shiho. Hima wants something, Hima goes for something. Hima wants to say something, Hima says something, with only an explicit "SECRET desu" filter to stop her. Heck, sometimes she even blurts out inner thoughts. She dithered about her relationship with Yori because she was genuinely unsure what she felt. The moment she decided, she pushed her way through to confess in front of an entire stage audience, if Aki hadn't stepped in to shoo them outside. Action follows clear intent without any pause to gather courage or think about what society thinks. Nina Iseri would give two pinkies up in approval.
If Himari ever decides she actively wants sex, rather than being willing to let it happen ("I'm even wearing cute underwear just in case"), Yori's getting ravished next chance they get, and Hima will probably make the chance.