Miyazato Akira is Akabayashi Rubi and Robin's cousin who currently lives in Kyoto. In the past, Akira and his family lived in Hisakata, just like the Akabayashi family. However, one day, his family had to move and Rubi and Robin hardly got to see Akira anymore. Back when he lived in Hisakata, he had spent almost every day with the twins. It seems like Ririan had also known him from back then and has had a crush on him.
Miyazato (宮里?) - Miyazato comes from Miya (宮?) meaning "palace", combined with Zato (里?) meaning "village". Miyazato can loosely be translated as "village of the palace".
Akira (あきら?) - Akira is a Japanese given name which can used for both genders, but ist most commonly used as a male name. The name can come from 明 or 昌 meaning "bright" or 彰 meaning "clear".