Illustrated by Kyowno, The IDOLM@STER Cinderella Girls: U149 is a spin-off manga series of the game The IDOLM@STER Cinderella Girls, created by Cygames and Bandai Namco.

TV anime adaptation of the manga has been announced along with its newly released PV and poster. The anime will air in April 2023.

The IDOLM@STER Cinderella Girls: U149 tells the story of a group of young idols under the age of 12, "U149" means none of them are taller than 149cm. The producer of U149 also looks like an elementary student, but is actually an adult. He dreams of being the producer of mature women idols, though reality is pretty harsh to him. Will the combination between these young idols and their little producer work?