Akeno isn't the problem, it's the public citizenry that are, the last thing we need is to be seen naked leaving a Shrine of all things
honestly going full dragon here is not what we need to do, sure, claws, scales, eyes and ears would be fine to get the point across, but whipping out the Dragoon form is going way beyond what we need, not only would it cause to much trouble for us, but if things did come to a fight it would restrict us from using our martial arts form charm, which is more useful than the Dragoon form by and large
what we need here is Presence, not bloodshed, it would be hilariously easy to shame and frighten this guy into line, all we need is a good roll with Presence, maybe empowered with Enemy Castigating Solar Judgement to help invoke shame and fear into the guy
if we are aware of Akeno's background enough bringing up the fact that her mother was a Miko from a line of Miko and what the hell is he on about calling her an outsider when he's barging into someone else's territory without so much as a by your leave or introducing himself to the Head of the Hyoudo Clan before he goes around picking a fight with one of said Heads treasures
seriously the sheer amount of shit this little guy has steeped into is hilarious and may well be enough to make him faint just from horror when he realises it