Alright so I had this genius idea to make adventure time in the human world, this sorta liks into something else I've been planning

Ages have been changed and I've tried to get their nationalities as close to accurate as possible as well as distributing English surnames and more human sounding names as good as I could.

IMPORTANT!

Just so you know in this story the other world still exsists but they decided to base themselfvs on an unknowing human world just to make everything THAT much easier. Their pasts have been changed so that they grew up in the human world but can still go back to the other settlement.

Finn opened his eyes and drew a long breath before looking down at the scene before him, two more minutes and the dealers would have settled

He let his mind wander to his recently dead parents, he knew that he was adopted from the start really, the rest of his family were a little more on the chubby side while he was thinner and after excessive training stronger, his hair was a much lighter and stronger shade of blonde than anyone else in his family and his eyes were a deep blue while his left eye sometimes appeared teal. Ever since he was a child he had alternated from the knowing and the unknowing civilizations, here he was well...a spy/bodyguard/assassin mercenary sorta guy while there he was an adept angel...well not really an angel but that was another story.

Finn looked back down at the scene intently, one more minute before target arrived.

Finn was only adopted by his parents because they had been sanctioned to by the angels guild (like a government of some sort) and they couldn't decline because dogs were on the angels side after they sorted out the rainicorn-dog wars.

Finn looked down again and saw what he was waiting for happening, he didn't need a scope with his sight being REALLY good, he smiled flashing perfect white teeth as they brought in the package. A woman with her eyes covered and bound by her wrists came in, she had long midnight hair and pale skin, and she stumbled forward and fell to the floor

"Here she is-now where's the money?" the man asked impatiently

"well that's my queue" Finn smiled shooting the man dead, before jumping from his spot with his scout rifle and taking out a smaller cs-44 enforcer to kill off the rest (a futuristic gun)

"Hello?" the girl asked "don't tell me you killed yourselves you stupid humans!" she said to herself

"Talking to yourself's a bad habit y'know" Finn said going over and untying her

"Who are you?" she asked surveying him

"They call me Finn" he smiled "your father put me in charge of making sure you lived to see another day"

She stayed quiet for second before saying

"Your an angel aren't you?"

"Technically...I'm not sure" he said "but that doesn't matter, which reminds me I've introduced myself but you haven't"

"Marceline" she said putting out her hand "Marceline Abadeer but you probably already knew that"

"well Marcy lets get you warm in your bed so you can put this experience behind you" he said happily shooting a corpse "sorry he was still alive" he apologized in a very disturbingly casual voice"

Neither Marceline nor Finn had realized it but that day had changed both their lives forever.

Righty-o (is that how you spell that ever so British phrase?...meh) anyway I would like reviews and suggestions because as usual I can figure where this is going but I cant figure how im gonna get there

And for those of you who haven't guessed I'm pro Finn/Marceline

Gonna make this a T just because I might add someone foul mouthed and also because Finn gonna kill a lot of people, plz comment on if I need to change the rating.

Thanks for reading and plz say if you want this to continue, if I get enough reviews I'll go on but if I don't I'll probably lose intrest and go fins out what the hell tumbler is (once again is that how you spell it?...)