Ignoring the shouting that her sudden entrance provoked from the man who had been about to get stabbed Mizuki focused on Kaede, as her friend was a much more pressing issue. Also physically closer. She could see in Kaede's eyes that the woman wasn't content with being pinned to the ground like this, but that just made Mizuki's gaze harder as she realized that she might have to do something unpleasant to prevent things getting out of hand here. She would have liked to try and gently calm Kaede down, but considering the circumstances she couldn't afford to take the time, and there were at least two factors present which would make Kaede calming down a lot more difficult...

I'm all in favour of trying to deal with the UI issue, and I'm really sorry you're one of the people afflicted with it, but your current plan isn't going to work and beating this kid up isn't going to improve matters either.
She could feel @Kaede Hoshi trying to push herself back up, but Mizuki was still the more physically oriented fighter of the two of them, and she wasn't going to let her friend go on a rampage which at best would just work as stress relief and at worst got her branded as a threat. Especially since she was apparently willing to attack anyone who caught her attention right now, which meant any male was in danger if they got close.
Pushing Kaede back down Mizuki made it clear that she wasn't going to relent on pinning her, wanting to make sure the woman didn't try anything stupid.
Although, speaking of stupid... She couldn't really blame the man since he probably didn't know Kaede and thus couldn't take into account her reaction towards men, but she still had to suppress a sigh of exasperation when the redheared Felis ran back towards the two of them after Mizuki had tackled Kaede a bit further away so the man wasn't a direct threat to Kaede's patience. Hearing the woman's words Mizuki tightened her grip on Kaede's shoulders, her heterochromatic eyes staying locked onto Kaede's even as she addressed @Sean Poteitoku

I appreciate the gesture of trying to help, but you'd be more useful making some distance. As long as you're here she's got something to keep her angry and focused. As for you...
She moved her head lower, until her forehead was pressed against Kaede's and her eyes were glowing faintly, her fingers pressing tightly against the clothing surrounding the seer's shoulders as the Caenis's tail bristled behind her.

I will do my best to help you deal with the loss of your UI, I will even help you vent as much stress as you want if that's what it takes, but right now I'm not moving until you're calm, and if you don't wish to harm me you'd better take that as motivation to not try because that's the only way you'll be getting me to get off.
The last word was pretty much a growl, Mizuki's fangs now bared even as her eyes told the clear story that she wasn't blind to Kaede's pain, but that she nevertheless wouldn't be moved that easily. She really hoped the two men would at least get far enough away that Kaede wouldn't keep noticing them, but either way she'd probably be in for a rough couple of minutes.

I do this because I care for you, but if you're determined to force this then you'd better be prepared to do your worst.