Okay.... So... Talking to a friend when WHAM!!! I got an interesting manga idea..... You can read it or skip to the contest XD

The world is full of demons. Now you may thing all demons are evil but that's not true in this story. Some actually live in peace with humans. Demons can enter into earth and live with humans. The problem is.... The demons can't walk freely on earth. They need a human host. The main character is sitting at school trying to take a test when he begins to hear a second voice insults him about his scores in school. The character looks around to see no one looking at him and he knows that he didn't think that. He looks at the teacher at the front who quite clearly heard nothing. Thinking it is a fluke he finishes the test and, of course, receives a low grade on it.
On his way home he hears the voice again. He jumps and looks around frantically. When seeing no one he runs home as fast as he possibly can. He thinks he is being followed when the same voice says, "You can't run from me, you know. It's pretty pointless kid." The main character keeps running and tells him mom/dad/Guardian he is being followed. They agree to call the police and he runs up to his room and locks the door behind himself. He also closes the curtains and checks the closet.
When he is sure he is safe he turns away from the Closet and jumps back. He nearly has a heart attack from what he sees. There is a second him sitting on the edge of his bed. The second him greets him casually. The Main character screams and when his guardian comes to check on him, he is practically out side his room starring at the second him in fear. His guardian looks inside his room and sees no one in sight. Maybe He has completely lost it finally. He is seeing things that aren't there. Or is he?
This second him explains everything about the demon world and why only the main character can hear and see him. The second him is a demon. The main character doesn't believe it and seriously begins to think he has lost it. The demon laughs at him.
The next day As the main character is walking to school, the police are out investigating. The demon shows up and begins to tell the main character the police will find nothing of a stalker. And the demon continually pesters the kid about his friends and school for several days. The police drop the investigation and the kid finally loses his sanity and yells on the top of his lungs to this demon that only he can see. The demon finally agrees to leave him alone but the main character is already getting strange looks from his class mates. But at least he got rid of the demon right?
The next day when he wakes up the demon is no where to be seen or heard. He is grateful the entire day. Sure a few think he;s a bit insane now but he has his thoughts to himself and he's no longer seeing things. He can't help but grins. At least until he is confronted by the school bully/gang after the final bell. Just as he ins cornered to the wall he sees the demon again. The demon says he'll help the main character fight off the bully/gang to prove he is real. The main character really couldn't take on the bully/gang on his own. He is a bit of a weakling as it is. With a last hope he takes the offer of the demon.
And his eyes go from their original colour to a redish-orange. His pupil slit like a cat's eye. The demon takes control of his body and beats the bully/gang single handedly. A few other student's see the bully/gang run off in terror. The main character comes back and is in total shock. The demon is real and can be really helpful to him. The main character thanks the demon. The main character gets into a lot of trouble for violence and tries to get rid of the demon again. One same problem though.... The demon can't leave until his host dies.


That's it for the story. I NEED A BUNCH OF CHARACTER PROFILES/REFERENCES! I will love it if you all actually sent me something! And doesn't have to be a good guy either! And can be a antagonist! I will give prizes to those who Get the top three best Character ideas! I'll even Colour them! >.<;;;

Rules:
Main character-Would like a picture or description of what he looks like. Has to be male. No background story is needed but a short one would be appreciated. A name {first-needed,Last-needed} Demon needs a name.

Other protagonists-Would like a picture or description of what he or she looks like. Can be either male or female. Can be human or animal(I'll take one animal as an official character. Does not need a demon. Need a back ground story of some sort. A relation ship of how they know they main character(Preferably not a clingy girl friend. Maybe a girl that likes him or that he likes). A name {First-needed, Last-Option} Demon Doesn't need a name.

Antagonists- Would like a picture or description of what he or she looks like. Can be either male or female. Can be human or animal(I'll take more the one on this one but would prefer humans). Does need a demon form (I'll give a few acceptation). Need a back ground story of some sort. A name {First-needed, Last-Option} Demon MUST have a name.

You guys can send any other additional info you can think of and can send as many character designs as you like. And oh! Keep bugging me about this idea if you like it XD I really want to get it done. AND! I WILL CREDIT YOU GUYS FOR ORIGINAL DESIGNS! 8D
ANY OTHER QUESTIONS ABOUT THE STORY PLEASE NOTE ME!