No... I think caution is warranted here. But I'm not detecting any obvious traps.

[Cinnabar lets Chaosbringer and Tycoon take the lead, trying not to make eye contact with Zeke. They had a vague idea of what his powers entailed, so they aren't surprised to learn that "Shining Justice" can produce a less toxic version of their power... but it still stings to watch him produce gallium of all things. Unfortunaetely, gallium and mercury are of roughly equal utility in this sitation, since neither corrodes glass.

What seemed at first to be a delicate glass cage is actuallly a part of the room itself - spikes of crystal have grown up from the floor to surround Mio. But this place is an extension of Mio's mind, right? If that's the case, isn't this a prison of her own making? The girl who rampaged through this landscape of shattered mirrors and the girl asleep on the floor of the cage could be one in the same.]

I was hoping to avoid force, but I can't see any way to remove her from the cage without breaking it. There's no door, and the base is fused to the floor.

We don't even know for sure that she's Mio-san... but no matter who or what she is, we can't just leave her.