The Atsumaru family was small even by standards of vassal families. Their line began centuries ago with early members of the Agasha family who studied kagaku. The brilliant but reclusive Agasha Nakune was one of the first Dragon to experiment with the strange blend of magic and science that would one day produce the crafts of mizugusuri and kagaku. It was not a perfect practice, and Nakune's failures meant that he was eternally searching for the proper combination of components for his strange concoctions.