[... Oh. Well there's Liao, at least. His words make Ken frown, though.]

We need to find Hinata. But... under quarantine... some of us were trapped in rooms before. The collars we were forced to wear had fluid in them - different colors depending on how hard it was to keep our powers under control. The fluid had to be changed a few times a month. ... But when we were stuck in the rooms we couldn't get to our checkups, so we were given syringes.

[He stares at the yellow fluid.]

I think I'm going to have to inject one of those. ... I don't know what color you guys would have had to use, but yellow was mine.