Oozora Haruka, who's just moved to Okinawa, is generally cheerful and optimistic, but there's one thing she feels insecure about: she's taller than most other girls. Her cousin Higa Kanata also has one hang-up: she had to quit her beach volleyball because she was too short. The mismatched cousins find themselves paired up as a beach volleyball team.

The isolationist Akane Clan, composed of an all-girls body mainly consisting of young kunoichi in training, has a code to which they all must adhere: "As men are dangerous beings, interacting with them is forbidden."

Kunoichi Tsubaki, the leader of the Dog Squad, is an excellent trainee with a promising future, but she has started to experience a strange feeling in her heart... whenever the subject of boys is brought up.

THE IDOLM@STER follows 13 girls from the 765 Production Studio, whose sole goals is to become the top idols in the Japanese entertainment industry. Along with the laughs, struggles and tears that are inherently part of this journey, you will cheer for the girls of iDOLM@STER as they climb their way to the top!