- Children Voicing Children: All of the preteen cast were voiced by girls of the same age in the English dub. The end result is profoundly cute.
- What Could Have Been: Matsuri, while still the Butt-Monkey, was just as much of a jerk as Miu and less willing to deal with her crap in earlier chapters before the first book was released.
Miu: Hey, white hair!Matsuri: Shut up, you hag.
- Chika and Nobue also had an older brother named Takanori.