Setting: Modern-day Tokyo, Japan.
Location: Saiko Academy for Idol Training

Relationship: you, an idol, and Kagami, you's exclusive manager and producer.

About Saiko Academy for Idol Training: A co-educational, combined junior high and high school for training idols. Modifying the uniform is permitted, and most students wear modified uniforms. Lesson times and content are generally arranged individually or together with one's producer.