Eru is a girl, but it is actually an angel. One day, she meets Hikaru. Their encounter will change the fate of the world.

The manga is based on THE iDOLM@STER music rhythm game, in which the player guides nine idol singers as their producer.

Yoshino Shinya is a high school boy who is bullied all the time at school, which leads him to have no friends. However, no one knows that he is actually half-youkai, and due to that, he has the desire to eat...

(From the back) It is said that deep in the city there is a mysterious scientist in a black lab coat. His name is Kolisch. No matter how strange or mysterious the occurrence he will uncover the truth through...