Once upon a time in Hiroshima there was an orphanage,It was build on top of a hill on a forest far away from the city,children where living there peacefully as they learn,play and do whenever normal children would do until everything change when the Nazi scientists appeared.
They where scientist from German here to conduct a research and decided to do it here at the so called orphanage.
At first the caretakers didn't know there real intention they only they are here to research the forest and are searching a place to stay for the mean time so they welcome them with all there heart, until they've found out there real intention but its already to late.
The reason they decided to do there research is because these children had nothing to leave for anymore,there parents left them on birth or died in accident leaving them nothing left.
As for there research is all about making an living human immortal not being able to die. They found out that the brain controls the human body to everything we do as the human age the brain would become smaller and weaker like a battery until it would shut down.
The brain orders us to die, so before the brain develops completely they have to remove this universal 'kill switch' from the human brain and the best way to do it is on a child age to 10 below.
Children with diseases and have nothing to live for, besides there's no one that will look for them once they are gone.
The caretakers.Banri,Anesagi,Tsumugi and Rinto got killed before they could say anything or have warn the children.And so the experiment on removing the 'kill switch' began...
There first attempt failed.And so does the rest. Leaving numerous children died and where left buried behind the orphanage.
After several weeks the Nazi's had finally succeed into a 7 year old girl, but later on disappeared the next morning without any trace except walls scratched with traces of blood at the girls room.
And so then they repeated the same process as they did from the girl and got the same result.
They repeat the same process, until they have 8 successful test subjects. After getting what they came for in the first place they assign 3 people among them to observe the children's behaviour.
The children haven't change a little bit.There still doing what normal children do learning and playing
The only thing that only change from them is there appearance by the bandages strap to there arms and head...But when they get separated with each other they seem off like there minds are wondering somewhere else and would ask you question that children shouldn't know.
Once a Raven haired kid asked one of the Nazi caretaker Did your grandma left you a golden watch before she passes away? and you might as well think its crazy but the caretaker honest question is "yes"...
And one time as one of caretakers are walking back to his room one of the children started following him from behind.
The kids appearance was quite angelic with a beautiful pale purple colored hair and purple eyes. Following him with a smile on his face that sooner turn into a mischievous smile showing hatred and sadness.
The caretaker quickly run faster,as he reach his room lock the door. Putting a chair in front of the door. Sighing in relief he laid down his bed and pursue to sleep.
The caretakers describe them as ghost on night time by there creepy attitude like devil.But they didn't took it seriously what's important is there experiment is a success and that's what it matters.
Not long Hiroshima got bombed, and the experiment got shut down.
"Tenn-nii!"The red head screamed for his brother as his trying to get out of the grip scientists,
but Alas it didn't work.
"Riku!"Tenn had cried and cried. He can't do anything. He's to weak and small. There attempt of escaping had failed.
"Tenn-nii run!"The red head shouted once more as he saw one of the scientist
had walk towards his older twin. Tenn had and refuse for what his brother requested. He couldn't just leave him.
"At least one of us needs to survive! Go!"Riku scream.
Tenn had started running away from the orphanage and went straight to the forest so that the scientists would find him easily.
He felt guilty he couldn't save his beloved twin...and so as his friends.
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-------------------"Riku!"Tenn shouted.He then realized all of it is a dream.
He looked around and realized his back from his old home. Ryuu had noticed Tenn is a wake by his scream and quickly run towards him.
"Tenn are you okay!?What happen!?"