Frisk stared in horror as this demonic girl was staring at her from the other side of mirror. Who was she? What did she want? How did she know who Frisk was?

Frisk: This isn't real. I'm just dreaming again, this is just another nightmare.

Chara chuckled with an evil tone

Chara: Oh this is no dream. Those dreams I've been giving you were mere tastes of my intentions with you.

Frisk: No...no.

Chara: Yes Frisk, I am real.

Chara walked though the mirror and sink, standing an arms length away from Frisk

Chara: And soon, you will be my host so I can finally take revenge on this cruel world.

Frisk backed away, her back hitting a stall door

Frisk: No. I wouldn't allow you to hurt my family and friend

Chara chuckled

Chara: Oh dear, are you oblivious? I'm a spirit, you can't physically harm me. But I can harm you.

Chara grabbed the knife out of her chest and pulled it out. As the knife left her chest, it turned into a very real and very power knife, the Real Knife

Chara: Now, surrender your body and I'll leave you alive after my revenge

Frisk: Hell to the no

Frisk ran through Chara towards the bathroom door

Chara: Ugh, stupid ghost body.

Chara growled at Frisk threw the knife at Frisk, but Frisk closed the door before the knife could leave the bathroom. Frisk pressed her back against the door as Chara started stabbing at the door. One of her stabs slashed Frisk right shoulder. Frisk squealed in pain and fear and stepped away from the door. Chara used the knife to swing the door open and smiled evilly at Frisk. Chara raised the knife and swung down towards Frisk to scare her into submission.

Monster Kid: No!!!

Monster Kid pushed Frisk out of the way and they crashed into the lockers

Chara: Ugh, you stupid, armless, raptor!!!

A student walked out of a classroom and noticed Chara with a knife

Student: Oh shit...

The student ran into their classroom and wanted the teacher that someone was armed. Shortly afterwards, the school was put into lockdown.

Chara: Hehe, this lockdown isn't gonna stop me.

Frisk and Monster Kid quickly ran towards the front of the school before the doors locked. Chara slowly floated after them. Frisk grabbed the doors and tried to open it, but to no one's surprise, it was locked

Frisk: Shit, it's locked

Monster Kid: Stand back!!!

Monster Kid breathed heavily and then fired a flame towards the glass door to try to melt it down. He soon had to stop to breathe for he wasn't strong enough to melt glass with his fire breath.

Chara: End of the line.

Then Sans teleported infront of Frisk

Sans: Kid, what's happening? I heard there was a school intrud-

Frisk: Sans's watch out!!!

Sans looked over his shoulder to see Chara swinging her knife down at him. Sans barely dodged the swing and grabbed onto Frisk and Monster Kid. He then teleported them out of the school. Chara screamed a demonic scream as she realized they got away

Chara: Ugh, that stupid skeleton! Sigh No matter, I'll find you anyways Frisk. Though I might need some help.

Chara then noticed a paper sign on a electric post outside of the school. Chara floated to it and saw it was instructions on how to get an anti monster group's main base.

Chara: Perfect