This applies to all the chapters, but I'll write it here in the final one.
As someone lucky enough to learn how to examine and analyze a text as a whole from multiple perspectives, this collection is a goldmine for discussion. These themes are weighty and multifaceted - there is no one singular answer to anything shown here. The author did their best to treat them with nuance and care, and that is commendable.
I think what I find most important to take from this manga is that while the way women and girls face difficulty in their lives differs from region to region, there's an underlying commonality: someone in a position of authority simply not wanting them to succeed. Whether that's dressed in a justification if religion, or traditions, or a warped sense of concern, it all comes down to somebody saying "I don't want you to succeed because". We see it in every nation, regardless of their differences of culture and religion and race. Someone with power doing everything they can to keep those without it from becoming their equal.
As for many of the chosen nations here being Islamic, take a moment to think of extremist Christian cults in the United States and how they treat women and girls. Lot more overlap than you would think, right? Rules about physical appearance. Rules about where they can go and what they can do. Arranged marriages, child marriages, the woman being punished if the marriage fails but not the man. Harems, in some cases. To demonize only Islam would be a disservice at best and blatant hypocrisy at worst. People have always used religion to justify whatever they want. What difference does it make which religion they use to do it? It doesn't mean all religion needs to be thrown out. It means we need to recognize that it can be - and is - misused in this way. If religion gives someone stability and comfort, that's good. But it must be freely chosen, and it must not be weaponized to control and oppress.
I realize I've rambled on for a while here (once an essay writer, always an essay writer I suppose lol) so let me wrap this up.
If
you take anything from this manga, don't let it be that any one specific group is the problem standing in the way of feminine progress. Let it be pride that women and girls, in every country and culture and religion and race, have fought, and continue to fight, for a a future generation of women and girls who no longer have to. And then continue the fight yourself.