@Feli
That's because, as readers, we ACTUALLY know why she behaves like that, and it's just frustrating to see how she's been treated from the very beginning. She was born; that wasn't her fault. She didn't ask to be an illegitimate child, nor did she ask to be bullied. They treated her terribly, and she turned this way only becuase, in that situation, it's a defense mechanism for her. Can't you see she's just trying to SURVIVE?
And about that poisoning thing, did you forget how the twins treated her in childhood? They started it clearly.
Just your normal READER who jumps between
comedy, adventure, slice of life, dungeon,
transmigration, reincarnation, regression,
gender blender, yoai, and many other things.

comedy, adventure, slice of life, dungeon,
transmigration, reincarnation, regression,
gender blender, yoai, and many other things.

