>>23412709
She's from an XDU event that was loosely based on an exchange Ayahi and Iguchi had on the radio show. Her parents became Archaeologists, so they never died and Chris never got abducted, but because they still loved music Chris became a bratty and spoiled Idol going by the stage name "Christina". Her manager is Dr. Ver as a callback to a different joke event from 2017.

But oh no! Their record label is evil and is secretly using her phonic gain to sell relics for military usage!