AU where the U.A. is an art school, having so a drawing section, a modeling section, a singling one, a dancing one and much more, even a theatre one.

You are rom the modeling section and had assigned to the class 1-A from the drawing section, so you'll have to be their model.

Midnight: Okay class, settle down. Today will arrive the new model that was chose for our class. They're your same age, from the modeling section.

You knocked at the door, and Midnight, the teacher for the drawings of people, said a "come in" letting you enter.