As a magical girl, Asada Nao came to a strange world for some reasons.
Following her childhood dream, she signed up for an idol internship.
Even though she is tone-deaf, Asada Nao still believes that she can become a real idol with her dancing skills.
Unexpectedly, the company collapsed before the first month of internship.
On the third day after that, Vongola came to the door...
It involves Puella Magi Madoka Magica, a tutor, and Ga Ying.