@Wizardrone you don't know if she has anything and she can understand others expressions and emotions, she just didn't pay attention to them. What I meant is that it should be about acquiring social skills and growing as a person.
it was stated that Pieta has the power to manipulate space and time, and that there were other people that have been in a similar situation as her, so I think this is a thing in this setting, some people have a condition they need to fulfill to beat their Dilemma and people with Dilemmas have...
so, I finished reading all the chapters and there is only one thing I want say, man I miss a lot of the characters, the manga isn't the same without them