JUR-324 Kijima Airi’s final Madonna work. It’s a secret from the students, okay? At a married-woman escort service with no actual intercourse, I ran into my admired cram school teacher, Airi-san… Since that day, I’ve been losing track of time day and night, completely absorbed in private lessons with her.

Yuki, a ronin student attending cram school, was troubled by his grades, which had stalled. The reason for his poor performance was that, since this spring, his world history teacher had changed to Airi. She was beautiful and eloquent, and he found himself so captivated by her that he could not focus on studying. Airi also seemed to worry that his declining grades might be her fault.

Then one day, a friend recommended a delivery service as a way to change his mood. Thinking he would try it just once, Yuki opened the website and found a beautiful woman named Ai, who had a figure strikingly similar to Airi’s. Though he suspected it was impossible, Yuki still chose Ai…