Sin.
What is to sin? Sin is the concept of right and wrong before the eyes of the heavens. To sin is to do a crime against good and stain your soul with the evil of the world. To sin is to go against God's will and wishes... So yes, Athur IS a sinner, and his sin is to fight against God and his wishes.
God wanted him to have a miserable life, so he threw everything bad he could at him.
He was born prematurely, which made him smaller and weaker than other children. His mother died giving birth to him, and his father, a very religious man, blamed him for the death of his beloved wife. He grew up being blamed for things that weren't even his fault to begin with. He was blamed for the neighbor's kid dying of sudden heart failure, he was blamed for the sudden end of the career of his father's favorite football team, he was even blamed for illogical things that were never and would never be under his control! The weather? Sure, let's blame this poor 5 year old child that it's a thunderstorm because of him!
But despite this all, Athur grew to be a very kind child, not caring if he was mistreated by others because he believed in God and his never-ending mercy... But he was not part of God's "mercy" at all.
When he was 12, he was locked inside his school when a lightning bolt had hit the roof, bringing down a portion of the ceiling and causing an electrical fire. His whole body was burned, but he miraculously survived, only to spend the rest of his life having to wear these bandages around his body to keep his skin moisturized. Every time he breathed, it was agony. Every time he moved, it was misery, and every time he lived, it was hell.
Hell... Why not go there already? He cursed the heavens with his dying breath as the crushing weight of the car pressed down upon his body, making his bones snap and pop as he just said: "If-if Satan's real... At least kill me quickly." And he died soon after, meeting no other than the literal devil himself - He was a fine man wearing a three piece suit, black and red, and with these red sunglasses and a perfectly trimmed goatee. "Huh, hi Satan. Can I call you Lucy?" The smirk the man gave him was devilishly handsome and made his heart flutter, making him very confused for a moment before the Charismaniac that was the devil said: "Ah, you're finally here... I am Lucifer, Satan, whatever you wish to call me, and I have a proposition for you, my little one."
Basically, Lucy explained to him that he was born in this world to carry the negative karma of every single alternate version of himself across various worlds, and that was a punishment for something he didn't even do, he was castaway from heaven as a fallen angel for something Uriel, Archangel of Grace, did and blamed him for. "Now, my proposal is for you to go to the worlds your other versions of you have suffered, and make so they don't suffer." To help him, Satan made him a demon! Well, he was a weak one, sadly, but to grow stronger, he could just absorb the energy of the worlds he's going to and completely devour the blessings the Son of Heaven ("Really, they're just a bunch of humans Heaven blessed to have high luck and be the protagonist of their world, without them there, heaven will simply destroy the world- so you can't kill them before you devour their blessing and completely cut Heaven's influence on the world, okay!?") and doing other tasks for Lucy.
Athur accepted without thinking hard about it, really.
"Great - This is your demon form. You can take this form any time you wish."
"...huh, can I-"
"Increase your dick size? Yeah, you can."
"Neat."
-Scene Cut-
'... For being a weaker Demon, I've got some really interesting abilities.'
[Name: Athur Gethur
Age: ???
Race: Weak Demon - Mastermind
Title: Lucifer's Champion
MP: 1000/1000
SP: 1000/1000
Drawbacks:
[Demonic Appearance: Your demonic appearance is not easily hidden, seeing as your whole body is demonic in nature.]
[Demonic Obsession: You can easily become obsessed with something - Choose one of the following every single world.
Games
Books - Selected
People
Work
Souls
Food
Revenge
Torture
Blood
Sex
Drugs
...]
[Mastermind: You can not knowingly lie.]
-Abilites-
[Shadow Travel I - You can sink into shadows and move rather quickly, teleporting from connected shadows easily.]
[Shadow Familiar II - You can shape shadows into a creature or animal smaller than a hound. You can see and speak through it, too! If you possess the ability, Shadow Travel>, you can teleport to your shadow hounds]
[Indistinct III - People are less likely to notice your appearance or your presence unless you show yourself to them. You can easily hide amongst the shadows and stay quiet, pratically becoming invisible. You can toggle this on and off on anyone you wish to.]
[Seductive V - Your actions, words, voice, mannerisms, scent, and anything else can greatly affect the psyche of others around you, making you able to easily seduce someone of your choosing. It can be resisted.]
[Dreamwalking I - You can enter the dreams of others, leaving your physical form behind. While inside the dreams of others, you can manipulate them to your will, and you can not harm them inside these dreams.]
-x-
The first world he was thrown into was a very... Basic world.
It was similar to his own, except this one was very similar to a Spanish soap opera with a very dramatic drama full of drama and trauma and death. Boring, isn't it? The son of fate in this world is this young girl by the name of Marcella. She is the embodiment of the word 'Mary Sue', and everything she does goes really well for her and really bad for those who oppose her in some way or another. The "plot" of this world was very simple, too, seeing as Marcella married this really rich CEO who fell in love with her even though she comes from the streets and has worked most of her life by washing cars and collecting trash.
Oh, right, him? Apparently, this version of him in this world was this really pathetic guy who opposed Marcella when she joined the company of her Main Love Interest, he didn't even do much, he just didn't think she was qualified to be the boss's secretary when he was the boss's secretary for so many years! So, in the end, he was kicked out by the boss and got drunk because he was sad he lost his job, ending up being run over by a truck and dying.
'That's kinda pathetic, no gonna lie.' He was now his demonic form - he could hide it, but it required a lot of effort of powerful magic he still doesn't have access to, which is why he was in the shadows, completely hidden away from the eyes of mortals. He stood at 7' feet tall, his arms were thick and muscular, and his legs were very muscular as well! He had these occult marks upon his vibrant scarlet red skin that were pitch black. They covered from his forehead and horns down to his toes and even his long devil tail, too! He had sharp claws on his nails and sharp fangs, too! With his abilities, he has the perfect idea of stopping the daughter of heaven of this reality from achieving her happy ever after.
"Time to work on it!" He grinned brightly as he faded into the shadows, moving faster than a car, teleporting between the shadows of people that momentarily connected to other shadows, soon appearing before the skyscraper where CEO Alejandro Alamos passed most of his time inside, working endless hours... He entered the shadows of the interior of the building before he started to meticulously enter the shadows of other employees and follow them until he found someone who was going to the big boss himself - He is a demon, his objective is to grow stronger, and one of the tasks Lucy gave him is to make others sin!
What better way to make a man sin, other than to seduce him and make him cheat on his beloved girlfriend with someone he doesn't even know is real? He grinned when he saw that the man was in his office. He entered the shadow of this man's beloved girlfriend, Marcella, and watched the duo talk: "You need to rest more, Alejandro." She sounded really concerned. The man in question was tall (not as tall as Athur, but tall), and he had these bags under his eyes that gave him the classic raccoon makeup of someone with insomnia. "I will, dear... I will."
Athur left the woman's shadow and stayed hidden beneath the desk as they talked a little bit more about their day, Alejandro's words were getting more dragged and slower and soon he fell asleep on the desk, making Marcella let out a sigh before saying: "Have a nice nap, Alejandro." Kissing his forehead and leaving.
'Oh, he will... He will...' Athur immediately entered the dream Alejandro was about to have, his exhausted mind creating a soft and calm scenario for him to dream - so Athur decided to change it into a sex dream! First, he made so Alejandro would wake up in a bed with red sheets and completely naked, next he made so Alejandro was almost fully aware and conscious of the world around him, so his [Seductive] ability may work.
And soon, the dream started! He changed his appearance to be a shadow of a person, but in no ways female, just to sexually confuse the man. "Hm... Good morning, baby." In his husky voice, he spoke loudly, making the man look at him with hazy eyes and confused - but his confusion was soon cleared when Athur started licking his balls a little, instantly making his average dick rise up to greet him: "Even after everything we've done, you're still getting up huh?" His big and strong hand came to hold the cock easily, his tongue swirling around the head of the cock as he focused his words on seduction and manipulation: "But i can still go another round, and you can too it seems... Let me take care of that for you~" He pushed the cock deep inside his throat, getting a loud and surprised moan of the man as his hand came to rest right onto Athur's head and held his hair tightly as Athur began bobbing his head up and down aggressively.
"Fu-fuck." Alejandro groaned loudly as Athur played with his balls too before deep throating him easily, suckling the head of his cock as he pulled the dick back to his mouth. Athur activated the "pleasure button," aka the prostate, in Alejandro's body. The man wailed loudly a "God!" as he cummed inside Athur's mouth, and he could feel his seed being sucked by the man he held the head of - As he looked down again, he saw the same man smile at him as he got up, he pulled his own cock out and Alejandro had to freeze in both fear and this unfamiliar sensation of deep lust for the cock.
It was massive and beautiful in a way, a soft red with a pale brown, veiny, and really large and thick - It was a monster. "Wanna do the honors, too?" Alejandro was still in that post-nut dream bliss, so he opened his mouth and let the cockhead touch his lips, the moment it did he was already lost forever.
He was addicted to that cock and he didn't even know it.
-Scene End-
Images here, probably!