YMMV: Ore no Kanojo to Osananajimi ga Shuraba Sugiru

  • Ear Worm: The opening song.
  • Old Shame: In-universe example with Eita's journal. Masuzu somehow managed to get a hold of it and uses it to Black Mail him note  into doing the things she wants. She further humiliates him by telling others about the stuff written inside of it, claiming that the journal belongs to an old ex-boyfriend. Every time she reads from it, he squirms uncomfortably around it, even though the other characters who hear about it don't seem too worried about what was written in it.
  • Ship-to-Ship Combat: The various pairings of Eita and one of the girls by fans can get quite heated on various parts of the internet.