Bro hates character development. If you didn't hate women so much you'd see that this arc is necessary to show both Ash's backstory and his relationship with his family/ his role in the world. It also is setting up what's going to happen in the future. We are clearly getting more world building lol.
Oh no, I don't like two fictional characters, one who tried to kill the prince because shes impulsive and doesn't think about consequences (tbf she'll probably be badass later, but right now just stupid), and the other, obsessed with a man because he was nice to her 20 years ago, which means I hate women (even though I haven't had a single problem with any female characters thus far)! How silly of me to want actual action in an action story instead of 20 chapters of bland one-sided dribble based on lame cliches (the family scene was fine because that actually WAS world building, this whole arc could've been done in 10 chapters).
Maybe get your head out of your ass and accept that people are allowed to criticise the writing of characters or plot points that are weak, even if they're about women or romance
Y'all when is this arc over?? I honestly don't care for Serenade or her maid, I just wanna go back to our lovely OG's and see some tower defense + other world exploration