最近、妹のようすがちょっとおかしいんだが。 - Season 1 Episode 9
Tomorrow there's a math test, and that's when Aunt Nanami finished moving in to the Kanzaki household and set out the kotatsu. Mitsuki decided to study under the warm kotatsu, but soon begins falling asleep instead.
- genus: Animation, Comedy
- Studio: Nippon TV
- keyword: ecchi, anime
- cast: Manami Tanaka, Junji Majima, Aimi, Kumi Sakuma, Chinami Hashimoto, Mikoi Sasaki