Sogen Con
sogen con annual threeday anime convention held summer month sioux fall convention center sioux fall south dakota originally based minnesota moving convention name convention based japanese word prairie sogen convention feature artist dance dealer panel discussion qa session video game voice actor workshop sogen con started kickstarter goal raising cover cost convention issue stemmed organizer otaku incorporated involvement two less successful contention kakkoicon minneapolis anime convention mac financial staff issue convention able successfully raise money two week sogen con website