Responses
Because what she summons are spirits and souls, they use power because of her power, so she can't use it to kill herself, at least that's what I undertood. And also she doesn't think she's strong enough to break that body completelly which is why she needs someone stronger than her.
Ah, okay. Thanks!
So I noticed in the beginning, she summoned a dragon to kill everyone in the tower. Then, I noticed that in the later chapters, it said that she could only be killed by a dragon or the son of the demon king. So why didn’t she just use her powers to kill herself?