The debut of the unmotivated brother and sister who get stronger the more intimate they are! Year 2050, relying on advanced technology special abilities have now become a reality, but people that can obtain them are only the very few “geniuses”.A certain month in the year 2073, the no ability brother and sister that can share a percentage of memories, spirit along with intelligence based on the degree of intimacy, to win the “Hundred Night Festival” compet.i.tion attended by those with special abilities…(PS : The day when s.h.i.+ro and sora are pervert idiot)