In one Universe, like our real world, you have exo as Male.. that is a kpop group spilt into 2 sub groups..
     While in another alternate Universe called "0x12", Where the boys are female... and they have powers... Like the badges the boys have... 

    When Exo K (From another alternate universe "0x12") went on a mission, from the caption of the army in exo planet... And exo k got in a machine that teleports people but it didn't go the right way.. And they all got throwned around in different places. In the boys Alternate Universe... And Female Chanyeol dropped in on the male versions, When they where hanging out in their dorm..