That last panel with her crying but not showing her mouth is brilliantly terrifying. Or terrifyingly brilliant? Anyway after falling down so hard with that rejection from her family, receiving actual positive reaction about her works from her idol could put her in dilemmatic position. Showing...
I, too, once told my teacher in class that my ult bar is full. Suffice to say, he didn't actually care that much and continue the class, because he had meta defense gear.
So I guess Aimi can save her because her right hand is still in this other world, i.e. part of her body still exists there, just like Flare way back when. Still don't understand how she died in the first place tho.