Uchida is a high school student genius who created a device intended to induce good dreams, yet he consistently experienced bad dreams when testing it on himself. One day, he discovered the school doctor sleeping in the clinic and decided to test the device on her. It proved surprisingly effective on her, and she expressed a desire to purchase the device from him. He subsequently tested it on his classmates, and it gained considerable popularity within the class as students began lining up to borrow it. Meanwhile, growing concerns emerged that users were starting to struggle with distinguishing dreams from reality...