In a cell of sophisticated detensions of the CCG, a young woman visibly mutilated and pregnant trembles with pain screaming full lung.

"PITY, COME QUICKLY! HE IS COMING!" She yelled as several people wearing insulated suits entered the cell with supplies to give her a delivery.

Several minutes later, a baby's crying sounded as one of the people held a newly born baby. While he devoured the piece of the umbilical cord of his mother already cut with red eyes eager for food and teeth already pushed.

"Do you see what I see?" Asked one of the people.

"Yes. With the right equipment and if we manage to educate him properly... he will be finished ghouls." Said the person holding the baby.

15 years later

Alarms from a GCC research center resounded in the building as a wild beast attacked and devoured all employees seen, fleeing with a large black briefcase. He spent about ten minutes running through the corridors of the building before jumping out of a window and not being seen either from those present in the building or outside close to the neutralized and brought back into his cell.

An hour later the streets of Tokyo were invaded by rain, a girl comes out of a cafe with a sign over the door indicating her name, the antique. She appears to be 15 years old with purple hair and a lock on her left eye wearing a waitress's dress. As it is her turn this week it is she who takes out the garbage for the next day the garbage men take them when something caught his attention a boy of his age wearing filthy clothes and holes as if he was a prisoner with black hair and black eyes shining with a red glow barely detectable holding a black briefcase.

"Help me, please." He said approaching her before collapsing on his shoulder.

Later he woke up lying in a couch with an old man in front of him examining the contents of the briefcase he was carrying. He rose to stop him but the girl he saw before unconscious caught him and blocked him.

"Don't move, you are too weak and you have not eaten yet." She said as the old man gets up and gives him human flesh wrapped in a white paper soaked in blood.

"Take this and eat. We will discuss after." He said as the young man rushed on the flesh and devoured it quickly as if he had not eaten anything for days.

"Have you all read?" He asked after eating.

"Yes. The CCG must be at your heels now." Replied the old man.

"Y-yes. Please, hide me! I don't want to be their guinea pig or their future weapon." Said the young man bowing his head imploring their help.

"Anteiku helps ghouls in need. So do not worry, we'll help you. We will also give you something to feed you. We will help you live as a human and live in peace with them. But in return you will work here in the antique way. We will also help you to master this thing that is in you." The old man said, putting the folder he was holding on the desk with a photo protruding showing a kind of silver monster with big purple eyes screaming at full lung while his handles and ankles are attached.

"Really? Thank you sir." Said the young man happy.

"Touka, do you want to take him to the tenth basement to test his people?" Asked the old man calling the girl by name, giving the belt that was contained in the briefcase to the young man.

"Okay." Touka said taking a wrist from the young man to bring him to an accessor and they go down to the tenth basement which turns out to be a huge room with completely empty pillars.

"What are we going to do?" Asked the young man.

"We're both going to fight to see if you're fit to fight alone or not at the moment." Touka said.

"Okay." Said the young man placing the belt on his waist feeling the monster in him fighting to take over.

"What's your name?" Touka asked taking a fighting position.

"Gen." Said the young man introducing himself.

"Nice name." Touka said as Gen placed a hand on one end of the belt buckle.

"Are you sure you want to do that?" Gen asked, knowing he might not be able to control himself.

"I'm sure so go ahead." Touka said ready to attack.

"Okay... Amazon." He said calmly, turning the end of the loop he was holding and a voice coming out of his belt.

SIGMA…