The iDOLM@STER: Innocent Blue for Dearly Stars

The manga is based on THE iDOLM@STER music rhythm game, in which the player guides nine idol singers as their producer. (Source: Anime News Network)

Ai, wishing to become an idol as famous as her mother once was, has been participating in tests at various talent agencies, but she has failed every single one of them. Her inability to even begin to follow into her mother's footsteps becomes a complex to her. As Ai bursts into tears, alone in a public park, she is approached by 765 Production idol Haruka Amami, who was a special judge at one of the tests Ai has taken. Having sensed something special about Ai's singing, Haruka comforts her and introduces her to 876 Production's president Ishikawa. The president is very quick to invite Ai into 876, as she believes that her mother's name alone should be enough to propel Ai to the top. Ai protests, stating that she wants to become an idol using only her own strength. She is then given one chance to prove herself, at a rookie idol audition. (Source: project-imas.com/wiki)

Based on the Idolmaster Dearly Stars DS game. Ryou has always had a problem with his feminine appearance. As a child he was often mistaken as a girl, and to his disappointment, that didn't change even after he got to high school. One day he came up with his best idea yet for gaining masculinity; he decided to become a male idol! His cousin Ritsuko worked in the idol industry, so she was able to get him an audition. Unfortunately for his master plan, the company decided that he would make a wonderful female idol. Now, to even have a chance at becoming a male idol, he must first become successful as a girl!