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.
Depending on how you view Kurumi's feelings towards Shido, she is either Cute and Psycho or Yandere. Or both. Or even a Tsundere, as a growing number of fans believe.
The fact that in Date A Live: Rinne Utopia, one of her clones (the one that did fall for Shido) was proven to be a Yandere in one of her bad endings, and in her situational drama CD she (and Shido) displayed Tsundere characteristics, served to support interpretations that weren't plain Cute and Psycho.
Evil Is Cool: Inverse Form Tohka is much more dangerous than her base form, and has so far displayed the greatest destructive force of all Spirits. It says something when she obliterates the majority of the belligerents and nearly levels the city during Volume 7's climax (end of second season). With just one swing.
Compared to the rest of the spirits, who are chaste and innocent, Kurumi is openly seductive and quite frank and comfortable with her sexuality. She knows the effectiveness of her eroticism on men, and not shy about using it to her advantage.
Ellen Mira Mathers. Between the sensual design of her CR suit and her Sexy Secretary looks, topped by her insatiable lust for battle, she gets to rival all of the above with unrelenting gusto. Wescott is such a lucky bastard.
Holy Shit Quotient: Beyond the silly Excuse Plot is a story that deals with apocalyptic beings, as well as the potential to harvest their powers for nefarious ends, so when the series takes a dark turn, expect fans to scream this.
I Am Not Shazam: A weird case here; the title of Volume 7 has led some fans to think that the Spirit on the cover is Miku and that something happened to her, when it's actually Tohka's Superpowered Evil Side. Also inverted by other fans who recognise the Spirit, but get the title wrong as a result.
Jerkass Woobie: Miku and Natsumi. The former is Broken Bird who pretty much lost all hope in humanity before Shido came along, and the latter is extremely self-deprecating, taking on a fake appearance just to receive what she would perceive as praise.
Les Yay: Miku aside, there's loads of this between Origami and Mikie in the AST. Covered in one of the spinoff manga, no less.
Magnificent Bastard: Special mention goes to Sir Isaac Ray Peram Westcott. Developing a gambit to throw Tohka over the edge of the Despair Event Horizon and invoke her inverse form that he's been trying to harness after thinking up several ways to get her to do so, including Cold-Blooded Torture... That should give you an idea that he's probably becoming one of these.
Memetic Mutation: Mikimoto saying "Mahal kita." (Tagalog for "I love you.") People posting comments on forums talk about it a lot.
Any of Shido's deaths are this either when he gets shot with a huge hole on his body, or the fact that he's all covered in blood after crossing a five meter barrier that would freeze him if any Mana was detected.
Holding up your hand, realizing that it's not there because it got cut by a laser blade. Thank you for that, Westcott and Ellen.
One of Rinne Utopia's bad ending has Shidou visiting Rinne's house on a whim, the player has a choice to ring the house's intercom or not, if the player choose to ring it, Shidou will enter her house and discover that not only the house was empty but it is also AN EXACT REPLICA of Shidou's house, in fear Shidou starts realizing that he doesn't remember anything at all aboout Rinne, all of sudden Ruler appears and warned him before the screen turns black, presumably killing Shidou.
In Volume 3, just the fact that Kurumi devours her offenders, along with some of the animal-abusers that were attacking an innocent cat, is enough to creep you out. Also, there's Shido's appropriate reaction to the bloody mess that Kurumi had made when she ate the abusers.
Rescued from the Scrappy Heap: The series is really good at doing this. A single volume/episode can cause the fans to go from hating a girl to loving her. Case in point: Kotori, Miku, both of which started as unlikeable, but Character Development skyrocketed their popularity back to an acceptable level, if not more. It remains to be seen whether Origami will receive the same treatment.
Origami, because of her Stalker with a Crush tendencies, her constant attempts to ruin romantic moments (out of jealousy and her persistent prejudice against spirits), and the fact that she's really weak compared to the other girls. It doesn't help that she frequently makes things worse instead of better, such as interfering with Shido's attempts to tame Spirits and end up provoking them. The rest of the AST also get this treatment for the same reason, albeit to a smaller extent.
Kotori used to be this due to the her really annoying Dominatrix commander mode (and the fact that people were starting to get tired of Shana Clones). Then episodes 9-10 elevated her to Ensemble Darkhorse status.
Ai, Mai and Mii — but especially Mii. Their only purpose so far has been an unfunny Running Gag where they interpret Shido's (and sometimes other people's) actions in the worst way possible, and fans find Mii's constant "gross" — her only line — to be incredibly grating and unfair to Shido.
Second Season Downfall: The second anime season usually gets called out for this due to the rushed pacing of the Miku / Dark Tohka arc. The animation◊ wasn't exactly top-notch at this point either.
This was partially due to the production being handed over to Production IMS instead of AICPLUS+note The animation studio behind the first season.. Though it seems the Blu-ray / DVD version of the Second Season may have fixed these issues to some extent by correcting frame errors such as the one linked above◊ and adding about 40 minutes of additional footage that was cut from the TV Broadcast. Whether this fixes the second season's overall pacing remains to be seen.
Stoic Woobie: Origami. The girl's parents were killed by a Spirit, yet she dutifully carries on as an AST soldier, silently waiting until she gets the chance to get back at the murderer. Then she finds out that she was the Spirit.
Tear Jerker: The second OVA turns out to be this. Remember the Kurumi clone that was killed by the original when Kurumi was first introduced? She is briefly Back from the Dead for this episode and decides to go on a date with Shidou. Throughout the episode Kurumi knows that she only has a bit of time of left before the original finds her and kills her, so she makes sure that Shidou, the only person who genuinely reached out to her, won't forget her, to the point that the two are pictured in wedding attire. And so, when that time does come and this Kurumi is gone for good, it really does feel like a loss for Shidou. This clone of Kurumi really did want to live a normal life and be remembered by those she truly loved, only for her to be Killed Off for Real in the end.