diff.text: |Proper name            = Castor (カストル,"Kastoru [Romanisation]<ref>URL="http://www.bssm.sailordream.com/information/blueball/Youma.php"</ref>) & Pollux (ポルクス, "Porukusu [Romanisation]"<ref>URL="http://www.bssm.sailordream.com/information/blueball/Youma.php"</ref>")