Mamori's pacifism might seem like just Wide Eyed Idealism; however, as episode 3 shows, she and Mirei are outnumbered, outgunned, and now that Kazumi, "The Zero Arms" is in the fight, completely outclassed. Avoiding fights whenever possible is a very sound, and their most viable, long-term survival strategy!
If what Akira said is true and there are some observers who evaluate whether the girls on the island can be sent back to the society then Charlotte is very efficiently undermining the effort. Akira wants to create a peaceful and orderly society which does not abuse their power. Charlotte on the other hand is a greedy, borderline sociopath who resorts to violence as first resort and abuses her power whenever she feels like it. The observers would never evaluate someone like Charlotte to be fit for returning to the society.
Charlotte and Momoka, two of the most evil characters in the story to date, both have inverted nipples. Is the author trying to tell us something?
Lady J having inverted nipples throws a wrench on this idea.
Perhaps it's not related to being evil, but being dangerous, as all three are this in their own ways. In a sense, their nipples being inverted could represent the dangers they're hiding.
Exters' transformations into weapons occur as a result of extreme sexual arousal, and they have no way of knowing it beforehand, or have any memory of it happening unless they're shown a video about it.
Although, only Liberators are able to change/wield the Exters (and if the class difference is too high not at all, as seen in Episode 2), and all carriers of the disease are identified and shipped to islands, so unaffected people arousing the Exters shouldn't be a problem and cause any sorts of accidental weapon summoning.
Nukui is a trainer. Her job is to prepare Liberators and Exters to be combat ready. The Welfs have a violent rapist be the one to train their citizens and warriors. Does anyone need to be told what the implications of that are?
Mirei breaking out of the illusion is a Moment of Awesome, bar none. The reason she was able to do so, however, is truly chilling. When the Liberator that uses the illusion Arms to have Mirei suffer a gang-rape, and boasted of showing Mirei hell, Mirei boasted back that she's already been in hell, in real-life. That means Mirei has already experienced what she considers worse!
Episode 8 reveals that there are people deliberately trying to research ways into militarizing the Arms Virus, despite being against international law, and that there's plenty about Mermaid that even the oldest residents don't know or understand.
Rain's side story shows that not only did her powers awake at age 9, with an average awakening at age 14, but that a large number of Exters at Mermaid, (and the other islands) are convicted criminals. Law abiding people innocently infected are being shipped off to penal colonies alongside convicted felons and prisoners of war without segregation or explanation, and this is supposedly an improvement over the situation before the UN got involved.
And just to make it worse, really think about it: it's bad enough that a 9-year-old was a Child Soldier, but as an Exter her powers are triggered by sexual arousal. OH...GAHHH.
Episode 9 reveals that Momoka can not only bond with an unconscious liberator, she's perfectly aware of everything she's doing, even in Arms form. If she's Mirei's former partner, then that means that she wasn't forcefully separated from Mirei, she most likely outright abandoned Mirei, and probably betrayed her country in the process.
Presuming that the "watcher" who offered Charlotte a ticket off the island was telling the truth, girls who find themselves being let off the island won't be going home. They'll find themselves falling into "The Organization's" clutches instead. Given Charlotte’s penchant for abuse of power, and how the Organization apparently rewards it, this is tantamount to giving a serial killer a Get Out Jail Free card.
