- Fake Nationality: Grenouille, Laura and Antoine are French people played in the film by Brits, while Baldini is an Italian played by an American.
- Filk Song: It inspired at least five, including "Scentless Apprentice", "Red Head Girl", "Du riechst so gut", and "Nearly Witches (Ever Since We Met...)".
The music group:
- Enforced Method Acting: Halfway through the single take video for "I still love U", the girls start grimacing and giggling, all the while still miming along to the song. The camera angle doesn't show the crew members lying on the ground giving them all foot massages.
- Hey, It's That Guy!: The girls briefly appeared as the camera/staff crew in OK Go's "I Won't Let You Down" MV.
- The Pete Best: Kawayuka left not long after the band started, because she wanted to focus on her studies (all the members were still in junior high school at the time). After a consultation with her mother, who said a duo couldn't match the stage presence of a trio, A~chan asked Nocchi to join.
- What Could Have Been: They had also considered the name Y.A.Y., for Yuka, Ayaka & Yuuka.