The anime will tell an original story set 15 years after the novel's story. It takes place at a fictional theater called Hollywood Tokyo in Harajuku, where members of the idol group "Shonen Hollywood" develop their talents with diligent work and studying. 
 
(Source: Anime News Network)

Second season of Shounen Hollywood: Holly Stage for 49.
 The original SHONEN HOLLYWOOD disbanded, the new generation had been recreated 15 years later. After experiencing hardships and obstacles as a trainee, they successfully held their first concert and debut as an idol. Another obstacles lies ahed of them now that they became popular as an idol. (Source: Anime News Network)

Daichi Hirosawa