My answer for the first question is gotta be that they were already assholes and that they believe that she was useless so there was no point in keeping her alive at that point ┐(￣ヘ￣)┌
I agree with the other commenter lol. Or they thought that if there was any chance she would survive, they'd rather her be dead than be anywhere else
To the second question children forget about things fast but only when they older the look back and are like oh my gosh that was horrible back then
Ok but like she got over it in 3 fucking chapters!! Most children who go through that don't fucking get over that amount of abuse in like a day!! The authors really got lazy with her healing chapters
1. So she could activate her powers
2. ╮(￣▽￣)╭
Apparently several weeks or months passed over the course of a few chapters so it could be the author just rushed it because they either didn’t know how to write trauma or they wanted to get it over with quickly because they didn’t want to get traumatized themselves. It’s bizarre honestly when it comes to people writing stuff like this
1) what was the point of killing her in the first chap
2) who can heal from a trauma this easily ?
This mange have a potential but it feel like they are missing it