I just started writing this so It's still just an idea. Any kind of feedback is welcomed.

Prologue
“I hate the orphanage.” Efah said to Argi.
“It’s not that bad. Hate is a strong word.”
“Yeah well I mean it. Remember when we were kids? I told you I wanted to get out. See other places.”
“We were kids Ef. We didn’t know about the outside world. The darkness that lies out there would kill us.”Argi reminded him.
“Yeah.” His voice had a hint of disappointment as he stared at the giant gate that surrounded the city.
The gate is the only thing that kept the darkness out. Centuries ago God’s warriors of light fought off the darkness and used their own souls to create the gate. The thick dark mist tried to break the gates but never could.
This all started when people lost sight of the light within themselves. They transformed into soul sucking demons. When they killed someone they absorbed their soul and made them more powerful. Eventually after enough souls one demon known as Malazar became the ruler of hell.
Malazar reached a level of power that only God could stop. God then chose three warriors to combat the darkness. These were the warriors of light. The warriors were granted great power and a sword to seal the darkness, The blade of Azura. Azura, the leader of the warriors of light, wielded this blade and fought Malazar.
Malazar fell to Azura but the darkness he unleashed on the world could not be stopped. The three warriors bound their souls together and created a holy gate that the darkness could not penetrate. This is the last remnant of humanity left.
“I’ll get out. I know I will. Somehow.” Efah whispered.
“Well if you do get out don’t die.” Argi said as he turned to walk back to the orphanage.
Efah turned and followed him. They got back to the orphanage to see a large crowd of people. Curious as to what was going on, Argi pushed through the crowd to see two of the orphan boys fighting. Argi sighed and got in the middle of them.
“What is wrong with you two?” Argi asked them.
“He spit on me!”
“Well he pushed me!” the other boy said
“You two are a bunch of girls. As your seniority I command you to go to your rooms. You both are fifteen and should know better.” Argi said with a disappointed tone.
“Yes sir.” They both said in sync.
Argi shook his head as they walked away. The crowd dispersed and Efah clapped and laughed. He looked rather amused.
“What’s so funny?” Argi asked.
“Them. You handled it quite well. Like a dog devoted to its master you are devoted to authority and honor.”
“I’m their seniority. I have the responsibility to uphold honor and authority. Otherwise this whole place would fall to darkness.”
“Is that so bad? Why are we afraid of the darkness? Why don’t we embrace it?” Efah sounded quite confident.
“Be careful with that thought. Don’t let that consume you or you will wind up a slave to your own power. Like our ancestors.” Argi seemed worried about Efah.
“It’s just a thought. I don’t mean anything by it.” Efah replied.
“That is a dangerous thought. Don’t meditate on that. If you fill yourself with bad things you eventually become bad.” Argi told him.
“Yeah I know.”