The first Marvisians had severe chemical imbalences in their bodies.Over time,these imbalences evolved into Ieona,which translates over to 'Dark Thing'.It is a chemical made when the body lacks something it needs,like food,water,and sleep.After enough of this chemical is made,it basically causes the person to go batsh!t crazy for a little bit.People are mostly not held responsible for crimes commited during that time.
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