The World God Only Knows/Trivia
- I Knew It!: Ayumi being Mercury's host. For the Genre Savvy, the author pushing Chihiro only made it more likely.
- Classical Mythology combined with one of Apollo's comments about how she ended up in Kanon because she's the god of music. Of the candidates, who fits the God of Travel most? Meanwhile, Chihiro, at this point, is looking more like Juno, with Keima as Jupiter. Chapter 190 even ends saying that Chapter 191 will be called "The Heart of Jupiter".
- Portmanteau Series Nickname: Kaminomi
- Relationship Voice Actor:
- Did you know that the voices of Keima Katsuragai and Kusonoki Kusaga are also the voices of two of the Sanbagarasu (Crow Trio) Sibling Team, Kuromaru and Sasami respectively, from Nurarihyon no Mago.
- The voices of Keima and Shiori Shiomiya also voices Jun Mikuriya and Zange/Hakua Suzushiro respectively from Kannagi.
- A bit of Hilarious in Hindsight that Kana Hanazawa voiced girls that have goddesses in them.
- The voices of Elsea, Chihiro Kosaka, Jun Nagase, and Mari Katsuragi also voices Amu Hinamori and Dia, Ran, Su, Temari, Nana, and Hotaru from Shugo Chara.
- The voices of Haqua, Ayumi Takahara and Chihiro also voices Yuno Arashiko, Mio Isurugi, and Shizuka Sado respectively from the MM! anime.
- The voices of Elsea, Haqua, and Kusonoki also voices Mihoshi Akeno, Sayo Yarai, and Fumie Kotozuka respectively from Sora no Manimani.
- The voices of Haqua and Jun also voices Ikaros and Chaos respectively from Heaven's Lost Property.
- So, Saori Hayami has gone from voicing a Kuudere busty Angeloid wielding a BFG to a Tsundere size conscious New Devil wielding a Sinister Scythe.
- This series marked the return of the Chris Patton/Luci Christian combo in the dub (playing Keima and Elsie respectively) after Chris had been away from voice acting for a few years.
- Talking to Himself: Parodied in Season 2, episode 12, for both the actor, Hiro Shimono, and in-story, as Keima contemplates what makes the ideal game, by way of epic political debate and an intergalactic war between Keimanites.
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