- Cross-Dressing Voices: Aki Shiina is voiced by Eri Kitamura.
- No Export for You: Despite the fact that almost any simulcast anime can be licensed in 2018, this anime wasn't released outside Japan and China. Although there's not an official reason for it, this is probably because bilibili, the company ranked high in the production commitee, doesn't export their properties outside Japan and China.
- Relationship Voice Actor:
- Aki and Yuri are Celica and Rumia
- Aki and Ayaka are Uni and Vert and Izumo and Shura
- Nana, Yuzu and Yatsuho are Gasper, Souna and Akeno
- Ayaka and Yuzu are Minerva and Yuuka
- Aki, Matsuri and Yatsuho are Cana, Kyouka and Flare
- Sumire, Matsuri and Yatsuho are Miyoko, Ryouko and Rindou
- Nana and Sumire are Solution and Shizu
- Aki, Nana and Ayaka are Honoka, Mozuku and Numi
- Aki and Nana are Mina and Ochaco
- Matsuri, Sumire and Yuzu are Anna, Ferilli and Sarah
- Sumire and Matsuri are Shouko and Pino
- Sumire and Yatsuho are Iona and Lil
- Aki and Matsuri are Ganessa and Violet, Shizuku and Rin and Lisa and Kujuri
- Matsuri and Yuzu are Mashiro and Misaki and Marrine and Priscilla
- Yatsuho and Ayaka are Frolaytia and Lendy,Haruka and Kaoru and Sailor Venus and Sailor Mars.
- Ayaka and Nana are Kyouka and Midoriko
- Nana and Matsuri are Bort and Diamond
- Ayaka, Yatsuho and Matsuri are Mikoto, Kaori and Itsuwa
- Aki and Yatsuho are Lucifer and Belial and Yachiyo and Kozue
Trivia / Miss Caretaker of Sunohara-sou