In this, Will is a type if demon called the Aerico. A disease demon. it is often believed to normally dwell unseen in the air, though it sometimes takes the form of a human. As a disease demon, Aerico are believed to spread disease, such as the Plague and Malaria. They inherit old cherry trees, if someone were to climb or even touch the cherry trees, they'd be cursed with sickness. If someone goes under the shade of the cherry tree, their hands and feet would swell and their health would become poor.

Since it's a human looking demon, I'll put in a features Will will have which will indicate there's something different about him. He will have sharp teeth and a fork-like tongue. The tongue can drain blood and eat from the inside of a human if he kisses them. He can extend the tongue to wrap around someone's body. 

I will now explain how a demon male and a human female commit to being in a relationship... Which seems really sadistic and gross. The demon spits in the girls mouth. He then kisses her and sticks his tongue in her to drain her of all her blood and eats her flesh from the inside. When the demon is done with eating her from the inside, he then eats the rest of her body so they can become one. He spits her out in the next full moon... (That's horrifying but if Will was a demon, I'd make it an acception)

(This is a collab with @caitlinZhoran43 . These demon ideas are from the RP/collab)

I also gave Will green hair in this because I thought it's color would work well with his disease abilities.

Katie's P.O.V.

I'm at the park with Jessica and it's the perfect weather to be at this exact place. Sun is shining, birds are chirping, flowers are blooming... That sort of thing. I'll admit it feels a bit too warm and I decide I'll go rest under the large cherry tree. It's been here before the park even existed and it's just stayed there. There's usually a some Christian guy around preaching about a demon haunting the tree but that Christian is no longer aloud to come back to the park because of his constant preaching. I'll admit, it's damn peaceful without his sqwuaking and besides, why would a demon possess a cherry tree anyway? I watch Jessica play with the other kids and I admire the coolness of the shade of this tree. I suddenly feel a sore pain grow on my limbs, more specifically my hands and feet. I look at my hands since more pain seems to be coming from them and I realize how big they've become! They've suddenly swollen so much but why? For what reason?! Definitely not bee stings! I hope this isn't deadly. I look at the world around me and I suddenly go dizzy and something appears out of thin air... A man with black and green hair and his arms are crossed with an angry expression on his face.

Caitlin's P.O.V.

I  see a woman and a man under a tree and the man is in a pose which indicates he's not in a good mood. I get curious and walk towards them. The man turns around and sees me, his eyes widen and he runs to me. I notice he has black and green hair which catches my attention. He gets to me and grabs my hand, pulling me away from the tree. "What are you doing?!" I ask confused.  "Well, I uhh..." He says stuttering in his sentence. "What were you talking to that woman about?" I ask and he just stays silent with an even angrier expression. "C-calm down." I say a bit intimidated by him. He lets go and runs back to the cherry tree and tells the girl "Get away from my tree." He says it in a way of which I can tell he's angry and he's trying to act calm but it's clearly obvious he's pissed. I see the woman walking away and she seems to be having trouble walking. She goes to get a girl who looks like she's around ten and they get in their car and drive off. My head whirls back to look at the man but he's not at the tree so my eyes dart around the park but he's nowhere to be found.

That's strange. I go to check behind the large cherry tree but he's nowhere to be found, it's as if he disappeared into thin air. The weird part is I actually think he was pretty cute even though he seemed so angry. Ten minutes pass and just as I am about to give up searching I turn around and see him. I think of saying hi and introduce myself but I groan from feeling a pain and see my hand is a bit swollen. How did that happen?! "Hi..." He says as he looks at my hands with a sad expression. "What's your name?" I ask but he just holds my hand and my hand suddenly reverts back to it's normal size which fills me up with awe. I put my hands up to my face and smile about them being back to normal. "Uhh... You still haven't answered my question." I say focusing my attention back to him. "Well, its nice to meet you." I say putting my hand to him for a handshake as a gesture of being polite. "I'm Will. It's nice to meet you too." He sighs and I find that a bit rude. My legs make me turn around as I think of getting something to eat since I'm feeling hunger catching up to me and I do have some money.

My body turns itself around and I head to a restaurant which I know is very much near and I even see it's sign a block away... A familiar sign.y lips let out a breath and I turn around suspicious of that man following me but to my surprise I see he's not even here. Not in front of me, not the road, not the sidewalk... He's completely out of sight. Strange.

Katie's P.O.V.

I lay in bed with my hands, feet and even face and neck swollen I a dangerous size. I can't breathe and can't even get up. Even if I were to scream my voice wouldn't be heard... Not even a whimper. Tears fall from my tearducts from my puffy eyes. I can barely see due to how puffy they are... Everything is swollen and puffy. I can't breathe now! Probably nobody will know I'm dead and even if Jessica sees this she's too innocent to know what truely happened. I close my already mostly covered up eyes and I want to scream but I just can't. Why me?! I wipe my tears with my swollen hand and see a figure appear in my sights which is the lower parts of my eyes since the upper part of my eyes are the puffy parts. I see he's wearing blue jeans and he has light skin but other than that, I don't know what he looks like. He steps closer to me and I cringe in fear of what he'll fo to me. I'm on the verge of death, so he can easily overpower and kill me and not a sound would come out. I close my eyes and finally accept Death's cold. I suddenly feel my body become lighter and I even have the ability to breathe. I can even see now and my body isn't puffy and swollen anymore!

But what about that stranger? I look at him a bit frightened but Jessica comes in. "Mu- huh? Mum, who's he?" She asks confused. A child that young wouldn't be anything new aware of what these dangers could be, so I understand why she's not acting scared in the slightest but he could kill us if he wishes! He covers his mouth and says "I'm just her friend trying to help her out." He says under his mouth but why is he putting his hand over his mouth? "I also want her to know she should stay away from my tree." He continues to say but again I wonder, 'why'? This literally makes no sense!