Nanami Akesaka (明坂 七海, Akesaka Nanami) Voiced by: Kumi Sakuma Mitsuki's aunt, and a bit of a drinker, Nanami is charged with checking in on Yūya and Mitsuki while their parents are away. Moa Torii (鳥井 萌亜, Torii Moa) Voiced by: Aimi Terakawa Shotaro Torii's younger sister, and a middle school student. She and her brother barely get along, which makes Moa often wish she had a nicer older brother, like Yūya is to Mitsuki.