In Hisaki's opinion, her mother was really disturbed by the event that fell on her father the other day. Or, her mother had learned to stop taking nonsense as the answer and just endured everything like before.
No matter what was the reason, Hisaki was so glad about this development.
"Mom, first, you have to bring this up to Dad. Better to do it when you guys are already at home. Even though Dad might be hesitant or disagree with you, don't give up. I'll back you up."
There was not much that Hisaki could do from here but, she still wanted to be the support that her mother needed. It was already incredible enough for her mother to be truthful to herself and verbally voice out what she was thinking.
Hisaki could tell that this matter had been weighing on her mother's mind for some time. Still, she was able to come true with her heart.