Hi, this is my first fan fic, so feel free to review and tell me if I'm doing it right 'cause, honestly, I have no idea what I'm doing. Enjoy! :)

Edit: a little update with a few improvements hehe

Chapter 1: Unwanted witness

As Yuka was running from Morishige, she found a hole in the floor and hid under it. She pressed her palm on her mouth to keep herself from screaming. From her hiding place, she saw a pair of unmoving girl's feet. It must have been another dead body impaled against the wall. Suddenly in front of her face an older boy appeared.

"What are you doing, hiding in here?" he asked. "What's your name?"

Yuka gulped.

"I'm Kizami Yuuya." He gave her a hand.

"Mochida Yuka."

She took his hand and got out of the hole and said:

"I'm looking for my older brother, we ..."

"So this is where you were."

Morishige must have heard them. He was holding a metal bar tightly with a hungry look on his face. Yuka hazarded a look to her right, to where she had seen the unmoving feet. She gasped when she saw there was no corpse. It was like no one had been there at all. She turned back to Morishige, who was talking about putting their faces on his phone. Kizami smirked, a knife in his right hand. Did he have it all this time? wondered Yuka. Things descended from bad to worse.

Kurumi was running restlessly. She thought she had heard Mina scream, but that was impossible. She had killed Mina herself, giving in to her begging and sobbing. She was running towards her body nonetheless. Only her steps filled the deathly silence, until she heard another scream. This one was coming from where she had been, so she supposed it must be the girl's. Either that, or that bitch is playing with me again. Saenoki Naho had listened to her story, but laughed at her suffering. She said that Kurumi was not dead yet. That was when she still felt her hunger threatening to cut through her throat, before eating fresh human flesh, before throwing everything up and giving up on life. Clutching her sword, she stopped in front of the solid dead body of the murderer.

"How many times do I have to kill you?" she muttered.

As the principal's son reached for her, she ducked and stabbed him in the belly. He fell on the wooden floor and she got her sword out.

"You killed all those children, huh?' she said out loud, then she stabbed him again. "You made this place up and dragged us into your misery." Tears shining in her eyes, she stabbed him again and again until the body turned into ash and scattered around. Her sword landed in the creaking wooden floor. As she dragged it out, she saw a blond student staring at her.

Why did I have to go back? I was safe and well. Kishinuma Yoshiki was already regretting his decision, he knew that all his bravery was for Shinozaki's sake, and now that they were separated it left him. As he was dragging himself forward, he heard a thump. He went to where the sound was and saw a strange girl stabbing continuously a dead body that seemed to be Sachiko's accomplice. Under all that filth she seemed to be wearing casual clothes and no name tag, her long blond hair reaching her hips. Her sword was an old katana, the sort you found in museums. She was staring at him unable to say a word.

He is not insane, not yet at least. She remembered every face of the ones she killed. May the sins you committed here not be taken into consideration, she always told them before she killed them. She did in only the ones who appeared to have gone insane and there was no hope for them. But she had not met a sane person in a long time...

As he was starting to come towards her, she called out:

"Don't come any closer!"

Why is she afraid? She is the one with the sword, thought Yoshiki.

"It's okay, I'm not gonna hurt you." he said stepping closer. She held the sword to her side trembling,but not letting go of it, for she might never be able to pick it up.

"I can't ... I'm dangerous." she let out weakly. While she was struggling to get a hold of herself, Yoshiki decided which question to ask first.

"What's your name? I'm Kishinuma Yoshiki."

"Murinami Kurumi. Is there anyone else with you?" she said, her voice more firm.

"Yes, there are my classmates and our teacher. Have you seen another student wearing a uniform like mine?"

Yes, she had, but she knew for a certainty that his classmate had gone insane.

"No, I'm sorry. Have you seen a girl in a red dress? I'm worried about her."

Yoshiki's eyes went wide with surprise. "W-worried? Why?"

"I saw in the newspaper that she is still alive. I think that the teacher is still trying to kill her. He's killed ... far too many." She could still see Akira's face as that monster was cutting his tongue out.

Yoshiki wanted to explain her everything, but there was no time. "How about we look for her together?" he asked. Shinozaki couldn't be far, maybe he could manage to find the others too. Yuki had told them that the closed space was collapsing, so they might be in the same dimension. Kurumi nodded somewhat incredulous, but they should hang on to as many of the sane survivors as they could. They started moving on the corridor when they heard another scream. Yoshiki picked up the pace and Kurumi followed him. They found themselves in a long hallway with a hole in the middle of it. There lay dead another student, whose blood was still gushing out.

"Why are you running from your big brother?" a student with the same uniform as the dead one called out. Yoshiki looked at the person the mad man was talking to.

"Yuka!" he let out. Yuka ran to him and Kurumi stepped between her and Kizami.

"I warned you to be good." she said pointing the sword at him.

"Oh, but I couldn't help it. Death is so fascinating." he said licking his lips. "I finally get to see if you're alive or not!" He rushed to her and she parried his knife with her sword. But he was stronger than her and she soon had to retreat. He grabbed her shoulder and turned her around, his knife at her neck. "Any last words?" he whispered in her ear, his knife tickling the skin of her neck. She pressed her sword on his foot and quickly jabbed her head in his, Kizami being forced to step backward. It was her turn to attack now. Before the eyes of Yoshiki and Yuka, she went for Kizami's shoulder, he parried, but she then quickly jabbed her knee into his stomach, then thrust her sword into his chest.

"May the sins you committed here not be taken into consideration." she said as his last breath left him.