From project-imas.com wiki
|General Unit Data|
C.FIRST (read as Class FIRST) is one of the 16 idol units of 315 Production, which all the idols in this unit are also the head of student council in their respective schools.
- THE iDOLM@STER SideM GROWING STARS - Playable characters.
Trivia and Fan Culture
- This is the first unit where all of members hail from Tokyo.