@talas No, she saw another kid, who was in the same competition as her with their parent and saw the kid was neglected for not winning the competition.
@donm527 I believe that the gyaru accidentally started talking in formal speech instead of the normal casual gyaru speech, indicating that she may come from a rich family background possibly a strict one too and she could just be pretending to act like a gyaru. You also can notice she was...
I'm pretty sure the "enemy" they are referring to is the kid, but he probably has a change of heart recently because of our MC. I'm only making this assumption because the author made it seem important that he knew how to kill that one undead guy and how to shoot the gun.
Looks like it was one of the girls from the group that didn't want to fight in chapter 21. Does that mean the Mikoshiba is indirectly in charge of two kingdoms? I guess we'll find out soon.