Comedy, Slice of Life, Music
- A group of teenage idols work together to be the group called "U149" with their newcomer producer
- These cute idols are very talented all have something in common: they are under 149 cm
- An iDOLM@STER spin-off series where the girls must get along with their producer to be successful
U149, also known as "Under149", is a spinoff story of Cinderella Girls encompassing the younger idols, who are under 149 cm, and their pursuits to be big time idols with their newly hired P-san.
Oct 15, 2016 to ?