The World God Only Knows/Fridge

• Fridge Brilliance: The reason why Katsuragi's teacher has a choker on? She's partnered up with an undercover devil!
  • A cut above brilliance. The majority of keen — or just experienced — readers suspected her choker to be the guillotine collar from earlier on in the series. But after the picture of her in her highschool years revealed she didn't have the choker then, it was simply regarded as a fashion accessory. It is a simple, yet cunning, ruse set up by Wakaki-sensei to confuse the most savvy readers. Or... is the choker really a fashion accessory, though she is supposedly an elite devil?
  • By the same token Akari's scarf never comes off.
  • Keima's plan in chapter 122? It's Real Life Capturing God Mode.
  • Look at Tsukiyo's poker card. In the background is Luna, apparently standing up. Something that a normal doll wouldn't be able to do.
  • When Keima is teaching girls in chapter 55, Kanon comes rather close to him before asking to join. It looks as if she had problems with being near-sighted, but the truth is that she remembers her conquest, loves Keima, and wanted to be close to him even for a short moment because she thought he had forgotten about it and didn't want to force him into a relationship. Talk about heartwarming.
    • At that point, she doesn't remember her conquest, she just has the same inexplicable attraction to him the other capture targets have. She doesn't remember until "recently" as of almost 60 chapters later.
  • Chihiro being the one capture target who still has feelings for Keima yet doesn't have a goddess in her makes a lot of sense if you think about it. She is one of the very few to fall for Keima's true personality when she was captured. So it would make sense for her to fall in love with him again, even without any memories.
    • Especially when you think about who the last goddess is. It's Mercury. One of Mercury's traits in mythology are his winged shoes/talaria which flew him around at fast speeds. He was a messenger who had to run a lot. Considering the fact that Ayumi is on the track team (and therefore also does a lot of running), it's much more likely for the last conquest target to be her rather than Chihiro.
• Fridge Brilliance: Apollo and her host Kanon. It is apt that Kanon has Apollo for a Goddess, seeing as how Apollo was patron god of the Sun, the brightest object in our sky, as well as healing and music. Also Mercury and her host Ayumi. Though Ayumi has always been an extremely fast runner, it is only appropriate that she have Mercury. When Chihiro asked Ayumi how the latter found out about her confessing to Keima, she said that she heard it from whispers in the wind. Note that Mercury is the Roman equivalent of Hermes, the fastest among the gods, and their messenger.
  • Chihiro has a lot of this. A lot of her angst comes from being an average girl. But she is actually one of the few capture targets who fell in love with Keima's real personality, making her more unique than she may realize. YMMV on whether or not this counts as "brilliant."
    • When Keima was teaching her how to successfully confess to the guy she was after, he made her spill a cup over that guy. What is the first thing she does during the recapture arcs? Spill a cup over Keima. How does she make his work really difficult for second time many chapters later? Confess to him without Keima actually making a move on her.
    • Chihiro was the only girl who openly acted against his conquest, saying that she wasn't someone he would pay attention to. Just like nobody she ever confessed to paid attention to her during her conquest and before it. That's because she was in love with Keima for some time (even before her conquest happened), and started confessing to people once she realized she probably won't be able to get Keima.
    • The fact that Chihiro loved Keima before the conquest makes even more sense after you realize that her conquest didn't involve Keima putting on a persona. Since he was attempting to help her confess to another guy, Keima was still acting like well... Keima. Just by acting like himself, Keima unintentionally conquered Chihiro.
    • Chihiro not having a goddess makes sense. She's always been labeled as the average girl. Even though she was suspected of having a goddess, as it turns out, she was still normal.
• Fridge Logic: Diana can communicate with Tenri via telepathy, and also with others through Tenri's reflection via reflective surface, and lastly, by taking full control of Tenri's body. So how in the Real Life physics can Diana emit sound from reflective surfaces? (answer: she uses those as surface vibration speakers)
  • From chapter 96, Hinoki can't revert to normal form, and remains naked as a giant (because she's still in the bathtub) until Keima gives her something to wear made from Elsie's hagoromo. Then she moves around just fine and even goes on a "date" with Keima to the seashore. The fridge logic here is that Hinoki isn't wearing any undergarments.
    • Unless Elsea gave her underwear to wear with the dress.
  • Kanon draws a picture of Keima in her sketch book, does that mean she drew him perfectly realistically? If 2D is 3D for them that is...
  • Another thing to point out, while the threat of a growing weiss in a girl with a runaway spirit may be real, the point about runaway spirits coming back to the real world as the children of the women they inhabit is actually not as large of a threat as it sounds. The spirits can be kicked out of their host simply by their hosts simply by their hosts falling in love, thus, unless the host girl's child is the result of a rape or love-less affair, any girl who had a runaway spirit will no longer have it anyways by the time they have kids, assuming they have kids with a husband who they married because they fell in love.
    • It's possible that it's not quite that easy. Hakua mentions that "love" is rarely used to chase off the runaway spirits both because it's easy to mess up and make the spirit stronger, and because very often it's not fixing the crack in the host's soul so much as putting a patch over it. Falling in love wouldn't outright fix Ayumi's performance and anxiety issues, Kanon's fear of becomng invisible or Shiori's shyness, and the girls may very well be able to overcome it in time (though with the spirits inside them, it's very, very unlikely). Keima's approach is so successful because he targets their issues as well (telling Kanon that she isn't invisible because there's so many people who were moved by her light, or telling Mio that her father would be proud of her and accepting the situation doesn't mean disrespecting his memory and so on). Even if falling in love would push the spirit out, it doesn't mean that at the first serious argument the crack won't be back and bigger than before, ready for the spirit to nest in. Then again, it's completely possible that the rebirth plan is just a convenient lie fed to the grunts and that the danger really is the spirit becoming too strong.