Left With the Power of Zero

Under Control

"Kaa-san！Your back！" Akane and Aoi yelled with joy.
Ms. Chiara hugged Akane and Aoi passionately before telling them a big news. "Mother is going to go to Paris to see daddy." She said with a smile on her face, "I also got a job to model for the biggest selling magazine. I won't be back for 7 years."
"No way！" Aoi cried.
Ms. Chiara, "Don't worry, Shou will be both of your body guards at all times."
"Heh. He's 10 years too young to be my body guard." Akane restored.
"Akane Fujiwara！" Ms. Chiara yelled, "behave yourself properly！"
"Yea. Kaa-san." Akane said looking at the ground.
"I got something special for you two." Ms. Chiara replied, "A bloody moon necklace for Akane and a blue moon for you, Aoi."
"THANK YOU！" they both yelled.
Their mother barely spend anytime with them. Aoi haven't been with her mother for a long time but, she already knew all the pain and suffering Akane has been in. Akane and Aoi quickly took the bracelet and wore it. Their mother（Ms. Chiara）kissed them goodbye. Shou carried her luggage into the extravagant car. When Ms. Chiara was about to leave, she whispered something into Shou's ear. She spoke so quietly that, Akane and Aoi couldn't even hear a word she said. Before that extravagant car drove away, Akane and Aoi waved goodbye to their mother.

"Let's resume our studies." Shou suggested.
"Never！" Akane yelled while sticking out her tongue.
"Well...your mother paid an awful amount of money to get private tutors. If you don't attend the lessons, I WILL MAKE YOU！" Shou yelled but, he had this evil aura around him.
Aoi and Akane immediately became quiet. They ran towards the next tutor and started their lesson.

"Hello, my name is Arashi Neko." Another 15 year old, third-year middle school student greeted.
Ms. Chiara decided that all their tutors should be a friend or classmate of Shou. Akane and Aoi exchanged a look...they knew that they were all Shou's friends but, why would their mom hire people that have not mastered the art of magic？
"Are they really trustworthy？" Aoi asked her sister.
"I hope we are." Neko laughed.
There was a long pause before someone spoke out.
"No surprise. We can hear everything you say. Your mother has given us great powers...our difference in experience is the exact same as our difference in age." Shou smiled.
Aoi was taken aback from his comment. Akane noticed her sister in despair and started shouting back at Shou.
"Magic is not something that can be given so carelessly！My mother may not know the dangers of magic...but at least we have a rough idea！" Akane yelled.
She took out a magic circle and drew something onto it. She immediately teleported Aoi and herself to their room and locked the door.

"Sister...are you alright？" Aoi asked.
Akane stared drawing a magic circle onto the ground and summoned spirits. When Aoi and Akane were bored, they would summon spirits from the world. Their mother would never know of this, for if she did, her mother would immediately put a magic barrier around their house. This time, Akane summoned a nine-tailed fox and, Aoi summoned a beautiful lion. They both enjoyed watching them have an intense fight everyday. That was what bonded them to this mysterious world. What they didn't know was, once they have summoned a spirit from the world, they are their weapon and soul for the rest of their lives.

The sky turned dark very soon. Akane and Aoi thanked the spirits and erased the magic circle. They got into the bed. At this time a maid would come into their room to insure their safety. Aoi would draw a magic circle to count down the amount of time it takes for the maid to come in their room.
"Okay...wait a second." Aoi quietly, "Five, four, three, PLAY DEAD！"
Both girls pretended to be sleeping while the maid entered the room.
"Such good kids！They fell asleep so early！" the maid（Ms. Haruka）yelled.
Suddenly, the two girls bursts out laughing. They were in very good terms with Ms. Haruka. She would read stories to them at night.（keep in mind that they are still 5 years old and they are educated.）
"Ms. Haruka." Aoi said.
Ms. Haruka answered, "Yes？"
"Why does kaa-san only hire Shou's friends to tutor us？" Aoi asked.
"I'm sorry. I am not allowed to tell you guys yet." Ms. Haruka apologized. "Why don't we read about the night parade of 100 demons？"
"Yes please！" Akane and Aoi shouted.
Ms. Haruka stayed with them until it was 10:00 p.m. at night. When they were both asleep, she blew out the candles.
"Let's hope we can stay together until the end." Ms. Haruka wished as she quietly left the room.

A few minutes later Akane woke Aoi up.
"Hey. What do you think Ms. Haruka means when she said, let's hope？" Akane asked Aoi.
"I didn't hear her say anything." Aoi quietly said before falling into a deep sleep.
Akane was the only one who heard Ms. Haruka saying that phrase so, she decided that she wouldn't tell Aoi. Akane wanted to get a drink of water, when she walked past Shou's room, she heard him talking on the phone.
"WHAT？！Half-devil？！" She heard Shou yelling.
Akane immediately took out her phone and recorded him talking. She remembered that devils were something that magicians hunted down. Akane couldn't hear what the person on the phone but, she could record what Shou is saying.
"Wait slow down a bit." Shou started to calm down.
"Okay...so you were saying that the necklace is to keep Akane and Aoi under control." Shou stated.
"Under control...in what way？" Akane thought.
"...and Akane and Aoi are half devils？！" Shou resumed.
Those words hit Akane like a bullet...what will happen to their life from now on？