Missing Piece

Mai Haruno is your typical shy girl. Her grades are high and she sucks at sports, but in truth this is all on act to keep others from knowing that she is a famous idol/singer known only by the name of Sky. Due to certain circumstances she is forced to go back to high school.

In her first day there she meets a strange boy named Eren Blanc, who overhears a conversation with her manager and blackmails her into doing his bidding.

During her stay there she tries to find the missing piece within her songs and within herself.