One summer, in one of the towns of Japan, went to the strange " snow." It seemed as if it were a small, fluffy balls fell to the ground. They fell in one night, without leaving a trace, and no one would never have known about this strange phenomenon,if this strangeness ended. But, as it turned out, this was only the beginning. The consequences of these deposits in the future affect the fate of ordinary Japanese teenager, Shinichi Izumi... And the fate of all mankind.