For Naoki, it seems the same, typical day, his childhood friend Honami Fujieda wakes him up for school as usual, and they advance to school. All is normal, until when he takes a nap on the school rooftop, and out of the blue, a girl falls out of the sky, and embraces him. Naoki dismisses the obscene occurrence as a day dream. This girl later introduces herself to the class as Mikoto Amagasaki, and she thanks Naoki for taking her to the health centre.