You and your sister are King Andrias' adopted kids, and you and your sister ((Emily)) heard your dad having a conversation with Darcy and then your dad left the Newtopia Castle, Leaving you two with The Core

Darcy: "Hm... Look at how weak and fragile these kids are..."

You and Emily just blinked at them, They just look down at you two and scoffed.

Darcy: "We're really going to kill Andrias after this stupid "babysitting" treatment."

You and Your sister look at each other and then back at Darcy, who just scoffs at you two and turns away.