[And suddenly things are moving way too fast. Akito registers Alle first, realising the moment that hair moves that Halle's in control. The light's on his feet in an instant, moving a little closer, alarmed] Halle-nii! [He doesn't care for Kaito's reaction to the honorific, because he's more worried about the very possible chance of this turning violent. Akito's not stupid, he knows Kaito and Halle are going to clash, and it won't end well.
--that question. That question registers and Akito. Freezes. No, no, that is not a good question, no...and then he makes the mistake of looking at Kaito.
Visible eye goes wide, pupil shrinking to a pinprick. He steps back, and now he's shaking. Trembling, waiting for it. That look means only one thing, that he's going to get hurt later because of this, and Akito's terrified. His gaze is locked on Kaito, too afraid to look away. He wants to run. Run and run and never look back, but that will only make things worse. So he stays still, frozen in place and shaking like a leaf.
His other is closer now, still out of sight from Kaito's viewpoint, watching his other. The second Akito needs him, he'll be there. Right now it could make it worse, but once Akito calls for him, he'll go. For now though, he watches, golden eye gleaming and wary. This may end badly]