Gate of Memoirs/Vivid Dreams

Who are these strange ladies in Sero-Anya's dreams, who look so much like her?
Episode 1—The Girl in White—
Portrait 	Dialogue
Music: "Devil's Heart"	Music: "Devil's Heart"
 	
*Sero-Anya: Mmhh...
*Sero-Anya: What...
 	
*Sero-Anya: *gasp*
 	
*Void Creature: *SCREECH*
 	
*Sero-Anya: Eek!
*Sero-Anya: W-Where am I? What is this place?
 	
*Sero-Anya: H-Hello...?
*Sero-Anya: Is anyone...there?
 	
*Void Creature: *chitter*
 	
*Sero-Anya: Ugh...!
*Sero-Anya: Go away!
 	
*Sero-Anya bats at the creatures, sending them scattering into the inky darkness.
*She dusts off her dress and looks around her, but sees only a stretch of black in every direction.
*Like moths drawn to an open flame, however, some of the creatures skitter back,
*seemingly attracted by the soft light Sero-Anya is giving off.
 	
*Sero-Anya: Uuu...What's going on? Is this a dream?
*Sero-Anya: I hope I wake up soon.
*Sero-Anya: It's so dark and cold here...
 	
*Void Creature: *click click*
 	
*Sero-Anya: I said, go away! Or I'll...I'll hit you!
 	
*Sero-Anya: ... ... (I don't think I can, if I wanted to...)
 	
*Sero-Anya: Eh?
Portrait 	Dialogue
Music: "Dragon's Roar"	Music: "Dragon's Roar"
 	
*A bright burst of light briefly illuminates the space, exploding in a shower of luminous sparks.
*As if in retaliation, streaks of purple shoot out of nowhere, colliding with their invisible mark in cruel lashes of energy.
 	
*Lady in White: Gh!
 	
*Lady in Purple: Hahaha! Struggle all you want!
*Lady in Purple: I will relish tearing you apart slowly, my *dear* self.
 	
*Lady in Purple: There can only be ONE!
 	
*Two figures, one in white and one in purple, are engaging in a vicious battle.
*Where the lady in purple seems to be bent on destroying her opponent,
*the lady in white adopts more defensive measures, as if she was reluctant to attack.
 	
*Lady in White: Stop! You'll...You'll destroy us all!
*Lady in White: Ensa!
 	
*Lady in Purple: Kyahahaha!
*Lady in Purple: COME! BE ONE WITH ME!
 	
*Sero-Anya: (Wait...I know them...)
*Sero-Anya: (But how?)
 	
*Void Creature: *SCREECH*
*The void creatures begin to swarm, racing alongside the streaks of dark energy being flung around.
*They swell and coalesce into menacing, fanged forms, and advance upon Sero-Anya.
 	
*Sero-Anya: (I have to find out who they are.)
*Sero-Anya: (First, I have to get past these things...!)