What have the Idaten been doing in the eight hundred years without any demons to fight? Where do they come from? What is their true nature? And what are they going to do when Dr. Obami plots their defeat?
a metamorphosis which makes 
him more effective in combat.
وهو تطوُّر وتحوُّل يجعله أكثر فعاليّة في القتال
Eine Verwandlung,
die ihn im Kampfe stärker macht.
Una metamorfosi che lo rende
più efficiente in combattimento.
a metamorfose que o deixa
mais efetivo em combate.
что не объяснить
с точки зрения живых существ.