Relationships
- Yoisaki Kanade: Fellow circle member. Mafuyu is amazed Kanade was able to make that one song.
- Shinonome Ena: Fellow circle member. Ena is jealous that Kanade trusts her so much.
- Akiyama Mizuki: Fellow circle member. Mafuyu thinks they're overly obsessed with cuteness.
- Ootori Emu: An underclassman she got paired with for the 3-legged race during the sports festival. Emu is scared of her, though Mafuyu doesn't seem to realize this or understand why.