Sato no Akari (さとのあかり), usually written as 里の明かり, means "the light of the village". The group's name is played off of each of the member's names. The kanji 里 in Katsuta Rina's given name means "harvest" or "village". On its own, it is read as "Sato", which is also a play on Sato Masaki's surname (even though her surname has a long vowel). The "akari" in the title is based on Uemura Akari's given name. In this situation, it means "light" or "lamp".
Unlike previous SATOYAMA & SATOUMI movement units, Sato no Akari, Triplet, and ODATOMO's profiles were never added to the official website, and their music videos were never officially uploaded to YouTube.