A・ZU・NA

A•ZU•NA is a sub-unit under Nijigasaki High School Idol Club. The unit consists of three members, namely Ayumu Uehara, Shizuku Osaka, and Setsuna Yuki.

Group Formation
The group was formed in phases:


 * 1) On March 2019, nine different combinations were offered to be chosen from.
 * 2) On May 2019, the unit compositions were revealed, and people were asked to submit names for them.
 * 3) On May 2019, the choices for unit names were revealed.
 * 4) On June 2019, the chosen unit names were revealed.

Etymology
The group's name comes from the syllables of the names of its members, "A-" from "Ayumu", "ZU" from "Shizuku", and "-NA" from Setsuna.

Azuna also happens to be a female given name in Japanese.