These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Alternative Character Interpretation: The main villain, Mr. Joker, is supposed to be a fantastic manipulator and strategist, yet he seems to be doing all he can to turn the characters against him. In fact, a lot of his actions only make sense if you assume he wanted to be stopped. For example, why would he tell Yomiko he plans to sacrifice Nancy's child and then follow that up by showing her some unknown horror inflicted on her missing boyfriend, knowing the kind of power she has and her unlikelihood to take his side? Following that, why would he always ask for Yomiko to surrender, never attempting to kill her? Why would he try to turn Nenene over to Dokusensha on their first meeting, when he knows they are now powerless and are soon to be absorbed by the British library? Keep in mind that she had just been rescued from them recently by the Paper Sisters, and they had barely escaped with their lives. It's a masterful stroke for getting four people he has never met to instantly unite against him at any cost. It applies to his dealings with other characters as well. Why choose Wendy to do the dirty work, repeatedly calling it dirty work and promising to give her dirtier and dirtier work in the future? Wouldn't it make more sense to pick someone a bit more emotionally dead inside rather than the bright-eyed office worker from the OV As who saw to it that no one was lacking for tea? And finally, why would he gather all of his biggest threats in the one place where they could do the most damage to his plans and to the British library in the last episode? If his goal was to make sure the grand evil scheme was unsuccessful without making it obvious to his colleagues, then all the pieces start to fit together.
Les Yay: The subtext implied between Yomiko and Nenene pops up quite a few times, and an old friend of Nenene once assumed Yomiko was her girlfriend; even Anita is a bit suspicious of the situation. Anita and her classmate Hisami are also very close. Hisami even tells a boy interested in her that she cannot date him because she is seeing Anita. And the "Carry me or I'll be forced to kiss you!" scene with Nenene and Maggie. Yomiko's bond with Nancy, which was quite intense in the original series, is further developed here, coming across as something deeply romantic. When Nenene finally catches up with the two of them, the situation could easily be interpreted as a love triangle, with Nenene victorious in the end.
It's just not an ROD series without Les Yay all over the place.
Moe Moe: Yomiko-chan. Maggie is an interesting example, her personality is quite moe, and clashes with her distinctly un-moe appearance to make her so adorably awkward.
Moral Event Horizon: It was never shown what exactly Joker did to Donny, but if it could drive Yomiko into a homicidal rage...
Tear Jerker: Quite a few, including Anita and Yomiko getting separated from the rest of the group, with Anita thinking that they are all dead. And later Maggie being forced to turn in Nenene to the British Library to protect Michelle and Anita, and then finding out her memories of them were fabricated by Dokusensha.
Toy Ship: Anita/Hisami and Anita/Junior. Also Anita/Okahara when Natsume pointed what looks like their Slap-Slap-Kiss moments.
What Do You Mean, It's Not Symbolic?: The shot of a statue of the Virgin Mary during the destruction of Hong Kong. Also, John Woo (the pigeon) shows up at the end of the episode in a manner evocative of the story of Noah's Ark.