Umi Oranai

"The broken things that surround me... they are reflections of my broken soul."
"I'm sorry. I'm lost just like you. The only difference between you and me is that I'm irreparably broken. "
Umi Oranai (うみ・ オラナイ, Umi Oranai) is a powerful entity who was infamous in his story as the younger brother of the Dragon, before it was revealed that his older sister had only been siphoning his power. He reclaimed his power with a heavy heart, his sister killing herself because of this, much to his dismay.
== Information ==
Umi Oranai is an infinite dimensional level being who is Sub-High Density Fiction Level. He is often remarked as the Dragon by others because he is the Ouroboros. He represents the cycle and eternity in its purest form and all its aspects. He is associated with Shin'nyo- just not as heavily as Arma is- because he has been seen with him. He knows most of the Top 5 (Assassins) if not all.
Ranking:
-Magic Level: Magic Ascendancy
-Threat Level: Unknown
-Potential: Beyond Infinite
-Tier: Unknown 
=== Origin: ===
Please note that this story is explicit. Read at your own discretion.
Umi Oranai was in a story where his sister was infamous for being the Dragon, Queen of the entire Story; and she liked everyone to know it. However, after the story developed and she wasn't needed anymore, she took to her little brother. Her little brother, who clung to her all the time. She loved it. However, after their parents retired, it was then his sister showed her true colors. Locking him in their house, she would tie him up and treat him like a baby, even making him suckle from her. He was just the child little brother. 
Later on, she evolved to feeding him disgusting porridge made of maggots, and he'd allow her to. He was extremely loyal to his older sister, and didn't mind her doing this because she said that this was normal. She told him no one else would love him the way she did, and he believed that too. Things weren't so bad, he was stuck in a dungeon, but it was his sister. He thought it was normal. She would feed him mouth to mouth, and rub him in weird places, but he only felt that this is what sisters were supposed to do. After all, she would also do it when their parents weren't looking. 
She took care of him, so he gave his entire self to her. She'd even allow him time out of the dungeon, out in the woods near their house. He enjoyed his walks outside. However, everything only became worse when he found a girl out there in the woods. Curious, he went closer. He saw that it was a girl and nearly called out for his sister. She stopped him, and over the course of the weak, educated him that his sister was horrible, after he told her what she had been doing to him out of 'love'. Having no self will, he still asked his sister about what the girl was saying, as she was making her latest maggot porridge. She only paused and said; "Don't worry Umi. I'll take care of that girl. She was only feeding you lies. Now, are you ready to eat?" She put some of the hot porridge in her mouth, and he got ready to receive it.
The next day, he woke up and found the same girl in his dungeon, and his sister came down moments later. She had said, "So, this is the girl, yes? Well, I must make an example of her. She dared gaze at you. So, I will take her eyes out."
By this point, Umi cared for the girl, so he pleaded to his sister to let her go. She grew more angry than he had ever seen her. "HOW DARE YOU LOVE ANOTHER GIRL! I WILL SEE THAT YOU LOVE NO ONE ELSE THAN ME!" She had screamed at him. He pleaded at her that this wasn't the case, but she wouldn't listen. In a fit of rage, she murdered the young girl, taking her eyes and shoving them down her throat so she could watch as she ripped her stomach open and the rest of her body in half. 
After she had calmed herself down, she put the contents of the girl in a large bucket, and poured it in the uncleaned spare porridge pot, remarking it was food for tomorrow. She also said that she was being way too lenient, and that she wouldn't make that mistake again. His predicament got even worse, and she raped him multiple times a day, even castrating him once. She would feed him her remains until they ran out, and she would torture him if he even said the slightest thing against her. 
However, at this point, he had developed his own will, even though it was still only a spark. He tried to speak to her again, but she only ignored him this time. Eventually, someone broke in. It was a girl who looked remarkably like the girl who was killed. He pleaded for her to leave, but she was focused on rescuing him after he told her what his sister did to hers. Only, his sister found out. Unable to let his sister kill another girl, he stood up to her, telling her not to.
His sister took this all the way to the wrong way. Instead of getting mad, she began to cry. She picked up the kitchen knife she was carrying to kill the girl. She had finally had a moment of clear clarity, and was unsure of how long it would last. "I-I'm sorry, so, so, so sorry Umi. I-I" She sobbed. "I did this to you." She raised the knife.
"W-what are you doing?!" Umi asked his sister.
"Righting my wrong, and giving you back the power I stole from you. I-If I do it to myself, it should work." She had said to him. Umi tried moving, but he was chained up.
"N-NO!" He screamed.
Her last words to him were "Umi, I've always loved you. Now, hatch from your egg and become the dragon you were always meant to be." Then she stabbed herself, intentionally ending her life and giving his power back to him.