Continue: Why kill over and over mindlessly kid.. Like you're someone else, welp kid gotta go you're almost here *click*
Tor: sans?
sans: it wasn't me who called her it was a different sans
Tor: Child how do you differ with Frisk tho?
Fsk: *yawns* this sweater is making me lazy..
Cha: *punches Fsk's arm* Stay awake
Tor: Chara! No hurting anymore!
Fsk: Owie! Meanie
Cha: and also I'm not the Frisk you know because I'm not
Pap: Is this a weird riddle human?
Cha: No, I'm really possesing Frisk. You know that tale where the first human falls under ground dies and Asriel absorbs the soul blah blah blah
Meta: Yes darling its just a old tale tho
Cha: Wrong it's all true
Tor: B-but I would have remembered that he was my son
Cha: Not if one of us messed with your memories. Let's say me and Frisk have the power to save and reload back to that save
Alp: L-like a video game! Just so you can have the best ending right?
Cha: Exactly but more we do that the more you guys forget.
Tor: Frisk? Is this-

Tor: True?
Fsk: Yes but
Asgore: *comes in* Is Frisk okay!? She sent me a urgent message through text!
Fsk: Perfect now sit.
Asg: *sits down with everyone*
Fsk: It's true in the underground we were unkillable to a degree everyone here faught me
Cha: and me in a sense
Asg: wait theres two?
Fsk: Shh dad
Asg: *tears up* She called me dad finally
Fsk: Shh. I died plenty of times, undyne killed me more than you'll think tho
Undy: Wait I killed you.
Fsk: and Mettaton hard getting to 10,000 viewers
Undy: Sorry! I'm
Fsk: It's okay. It's all worth it to help everyone out, but thing is
Cha: No one here should exist because every single time line she's supposed to fight asgore but in this timeline
Fsk: I gave part of my soul to break the barrier now I can't go back to my last save I have one life. I'm glad tho because we're all her not down there
Cha: And theres a thing called a true reset where it brings us to where we both fell to the hole. We'll have every memory but no one else remembers

Tor: Child? Children.. This is a lot
Alp: To put on us
Undy: So Chara there killed all of us? Multiple times for fun? And erased our memories about the first child?
Cha: Yes yes and yes. First frisk or old me tried to help everyone than got bored so reseted back did different things than started killing
Tor: W-who would have thought a innocent child would do this
Fsk: I could have been the same way if i didn't accept Toriel's love.. That's why I ran away from ther orphanage
Cha: You went with that lie?
Tor: Child? You lied about the orphanage
Fsk: N-no!
Pap: Human.. Frisk you can tell us anything
Cha: Did you tell the about the sc-
Fsk: *tackles Chara* Shut it!
Tor: ! *goes and picks up Frisk* Child your never like this and was she acout to say scar?
Fsk: No! Mom! let go! *struggles and get lose running into her room*
Undy: *Spear of justice picks up* Chara you're hurting frisk
Cha: Pppfft! HAHAHA! Funny how you think
sans: *Megalovania picks ups*
Cha: Okay you're scary...

Tor: No fighting! Frisk thinks she can change *goes to Frisk's room*
*both Undyne and sans glare at Cha both music softly playing*
Cha: T-Toriel? M-mom?
Tor: My child sweety? I'm coming in now *opens the door to see Fsk under the covers of the bed goes to the bed and sits on the edge* It's okay if you wanted to hide your past we know you don't want us to worry
Pap: Yeah human. We're here for you.
Fsk: I-I know..
Tor: Wanna talk about it?
Fsk: *pulls the cover over* My mom real mom told me if I can climb the mountain I can come back
Tor: What? Was she a monster like a evil monster?
Fsk: I dunno but she was mean to me..
Pap: We'll human were you family now
Fsk: Y-you don't hate me?
Tor: No my child look what you did, you saved the world gave it all you can
Fsk *sniffles and rubs her eyes* Thanks.. *smiles softly*
*gaster blaster in the distance and spear sounds*
Tor: She's gonna be a hand full now I'll be back gotta break the up. *hurries down stares* Sans! Undyne! Chara!
Fsk: *giggles*

I really like this kind of thing :P