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.
YMMV: Red Garden
Designated Hero / Designated Villain: The Animus and Dolore clans. Granted, the Dolore were the ones who stole one of the cursed books in the first place, but it is implied that this happened centuries before the events of the series took place.
Why could J.C. fight the way he did? It's clearly stated that only women become Animus, and he wasn't part of the Delor clan.
Why doesn't it occur to anyone to use the cursed tomes to remove the curses from both the Animus & Delore clan? If the books could used to curse both of them, then it stands to reason that it cure both of them.
Most likely they didn't want to do anything that would help an opposing clan.
Why did the Dolore take only Lisa & leave Kate, Claire, Rose and Rachel after the five were resurrected? Had they taken all five girls they could have had more test subjects and four less Animus to worry about.
Because Lula and JC had saved the others; the Delore only managed to get away with Lisa.
Les Yay: The first episode has Kate pining for Lise on a very — personal level. And at times, Paula seems very close to Kate — very close. This goes into Anvilicious territory from episode 18 onwards.
Narm: Invoked by the random musical outbreaks, in which all the singing is terribly off-key and too mumbled to understand the significance of the lyrics. According to dub writer Stephen Foster, it's meant to be bad on purpose, as the Japanese version did it that way, too.
Tear Jerker: Lots, even the very first episode is heartbreaking.
Kate's reaction to Lise's death.
The slow progression of Herve's cousin and sister.
The girls' reactions to finding out that winning the war will result in them losing their memories and living forever in ageless bodies, which hits them hard since they had spent a good part of the show believing that they could be resurrected & return to their normal lives. They do not take the news well, particularly Rose, due to their relationships with other people.