Before trans: I'm guessing Ichirin is jealous that Miko brought out a side of Byakuren she had never seen before? Or something like that. Seeing Miko as an interloper and unwelcome. But Shou and Murasa are happy about it. Pretty standard stuff.
When she speaks to you, Hijiri laughs like she's actually happy.With a smile different from the one she shows us, one without worries.She gets mad.She gets shy.Her true expressions, hidden by that false smile.And she doesn't just smile.At first, we wondered if that could really be Hijiri.We'd never seen her so emotive before.