This chapter isn't to make people feel bad for her. This is to show people are not born evil and there are experiences that made them that way. It put depth into her character to show she's not just there to be a cannon fodder for the MCs.
I also think it's an opening to a path to reconcile Tougou's relationship with his mother. Makes me think "Ah..this manga is coming to an end T-T"
And history repeats itself! She’s so much like her mother now!
I wonder if the introduction of her true son, and reminiscing of her past will help her see the mistakes in her path, welll... if she starts realising she’s turning out like her mother... she might wanna stop
Well, let’s see
I thought she was understood and want able to give birth to an heir..
So food she get an operation it something to make it that way so get own blood couldn't be used by her evil/power crazy mom?