Director Commentary for Episode 8 (Mitsugo Biyori ~2-ransei~):

* In the the PE storehouse: We gradually see how good of a girl Mitsuba can be.

*Futaba and Kazuya's Piggyback Adventure:
When the Storyboard came in, it was just under the amount needed for an episode... In addition to the lack of time, I almost gave up on including the portion. However,
Futaba's (incomplete) character song came up and I decided to use it and include a music scene to buy time. Eventually, when the lyrics came in, I was greeted with Pai, Pai, Papai which totally surprised me!!!! Well, it *is* Futaba, I guess its fine...