I hate the mother
She reminds me a lot of my own mother in that she attempts to mediate or not take sides and just results in nothing changing because she is unwilling to stop the father
It is the manga equivalent of clicker games where there is no problem that is not solved after one second by another click and is just about amassing more points
It is not even as amazing as the guy who found where a Japanese singer lived using the reflections in her eyes in photos
https://www.bbc.com/news/world-asia-50000234
She isn't a yandere
It is more a tit for tat sense of justice combined with a lack of a sense of proportionality a lot of emotionally immature people and the president of the USA have