Prologue
A small town is set on fire in the middle of the night. Terrifying cries of people and children are heard everywhere. Chaos descends upon the home of the poor humans. The color of the moon has turned blood as evil run down the streets.
"K-Kuro… s-stop it now… You can hear me, right?" a short brown-haired boy desperately walked toward a girl with long black hair, carrying a bloody sword on her right hand. The girl looked at him with her dark-red eyes, a look with intent to kill. But the boy was not taken aback.
The boy looked at the black-haired girl as a smile appeared on his face. "Kuro, stop it now. You don't have to put yourself into this mess. Let's just go back… and live normally… like we always do…" the boy said and stretched his hands out, waiting for the girl to approach and hug him.
He thought that his voice reached the girl's hearing, but not. The girl raised her sword and pointed it at the boy then charged at him in before he knew it. She thrusted the sword deep into his heart and the boy's blood ran down at the sharp blade. Blood ran down from his mouth too and his eyesight became blurry. He knew he was dying but… it was strange. Instead of despair, a smile of happiness formed on his face. Before the girl could pull the sword out, he held her hand that she used to hold the hilt.
He looked at the girl's eyes with tears running down to his cheek and pulled the girl to him and hugged her tight. The girl's eyes widen in shock as she felt something warm on her body. Then he put his mouth to her ears and whispered something, then he let go and slowly lied down on the ground, waiting for the darkness to wrap him.
The black-haired girl remained standing in front of the dead body of the brown-haired boy with shocked eyes. She dropped the sword and knelt on the ground. Then she passed out.
The black-haired girl slowly half-opened her eyelids, revealing her dark-red eyes. Her eyes widen in shock as she saw flames circling her around. She sat up and looked around her and, to her greatest horror, she saw a short brown-haired boy lying dead next to her. Tears flowed right from her eyes as she helplessly crawled towards the boy.
"S-Shiro! Wake up, Shiro! D-Don't die… don't leave me… alone…" she cried softly while shaking the boy's hand. Having no response, she cried out loud that her voice echoed throughout the entire town.
"S-Shiro… why…who did this… to you…?" the girl mumbled while burying her face on her dirty hands.
"You did it yourself, kid," a girl's voice came from behind her. She slowly turned her head to see who it was, and a long silver-haired girl stood before her, dressed in a silky white dress, wearing black sandals. Her bloody red eyes were smiling while looking at the black-haired girl. Shock was the right word to describe the girl's reaction, after seeing that… the silver-haired girl has the same face as hers, except for their hair and eyes.
After recovering from shock, her sadness switched into anger and glared at the silver-haired girl. "What do you mean… by I did it?" she asked straightly.
The girl in white smiled and nodded her head. "You don't know? You killed him…by yourself," she replied naturally.
"I don't believe you! I would never—" she stopped when she saw a sword right beside her, tainted in blood. She couldn't believe what she saw.
"The sword beside you proves that you murdered him," the girl said, not moving from her spot.
"N-No… th-that's… not true…" she murmured then cried again.
"Lately, while you were not yourself, he's been calling you Kuro. Why did he call you that? Outrageous," the white girl said and let out a small laugh.
"Wh-Why… you say? Because it's my name… It's my name!" she yelled at the girl.
"Your name?" the girl said as her smile disappeared. Then she closed her eyes and sighed. "That's not your name, kid."
"What the hell are you talking about?! You don't even know me!
"I know you… more than anyone else in the world," the white girl said with serious eyes.
"Wh-Who are you…?" she asked.
The white girl's smile came back and answered, "You may not understand it, but… I am you…"
"Wh-What?" she asked confused.
"And from now on, it will be years before we meet again. Just remember what I told you… Eri," the girl said then 7 people passed through the flaming wall surrounding them. Then they all knelt down on one knee and bowed their heads before the silver-haired girl. She was even confused more.
"Then… goodbye…" they all said, including the silver-haired girl and they disappeared without a trace. The black-haired girl still remained on her spot, shocked and confused. Then she looked down on the ground and uttered a single word. "Eri…"