[quote=ravenDivinity]
.BlackCat, I don't really understand how going off on walks and being around children could cause someone's personality to worsen, could you elaborate?
[/quote]
Arisu already had a short temper and found the children really annoying. She liked going on walks but the children that would spend time in the areas that she walked would cling to her and so she would get really annoyed at them. And then trying really hard not to retaliate against the children meant that she was still angry when she got back to her home and just overall after this happened many times, she was utterly pissed at the kids.

And also I just said that her temper grew worse over time. That was a result of many factors in her life. One of them being the annoying kids.