So let go to the seven primordial of the underworld. the first primordial known himself as a fallen angel who betrayed his own kind to he desire to create a world with the being Stronger has a right to live in the weakest was going to die he was bored to his role to keep an eye to others being. And he's name was Lucifer was one of the will of the creator but he's prides to create a better world without the weakest. that's he's only goal but Michael the leader of the will disagree to he's own goal. that because they have a duty to keep an eye or to watches the being that creator made. And that time he was know as a most loyalty and perseverance to other will. But he made he's own decisions and leave in the paradise. and go to the underworld to find the other sin . he was one of the strongest being in there as a archangel he was a fallen archangel. And he's wing becomes black as a symbol to the being who betrayed his own races. and given the title as a pride sin Lucifer one of the king of underworld. The second sin was mammon the greed sin mammon is the one of the most powerful demons in the underworld. he was the rival of Lucifer but mammon is the most greedy demon there he have an ability to steal others ability in bestow it to other demon that's why mammon has many subordinate but the end of the battle between Lucifer he accepted as a second of the ranking. He was the one made the ranking system in the underworld. that why he was given a title of the sin of greed mammon. the third sin was belzebub the first friend of Lucifer and he's right hand man to be precisely he was a most terrifying being in the underworld he always eat anything he want. everyday he consume many demon and absorb there ability and life force he was on far in the ability that mammon have but he always not care anything. he always want to play the other demon and consume they but and the day that Lucifer go to underworld he meet him but the meeting they have the most painful of bulzebub that because that is the first time he was lose in term of fighting. he was defeated by Lucifer but Lucifer give him mercy even Lucifer killed him he can revive infinitely that because belzebub ability was to absorb and infinitely regenerate thats was so overwhelmed ability that before a demon born was they have one ability it depends on the demon like mammon he have an ability to steal and bestow. it's likely one ability but Belzebub have an ability to absorb other ability. so belzebub was more than powerful like mammon but he accepted that because mammon more than knowledgeable than him. so he become one the king in underworld and third sin of the gluttony belzebub.and fourt sin of the underworld was satan the little demon before who crosses the demensional gap he was known as a brutal demon as long you can see him you died. he was on of the king of the underworld the wrath sin who destroy and take a revenge. When they first meet Lucifer he thought he can kill him instantly but he's prediction was wrong even a little scratch cannot harm Lucifer. and that why Lucifer said to him that he can give him a revenge that he always want .the rewards of he's hardwork if he ever become her allied. that was a interesting proposal that he cannot disagree he agree it but he have a condition first he was the one who wage a war agains the angel. Lucifer agree to he's condition. the next one was leveatan the sin of envy the ruler of abyss sea. he was the most monstrous aura other than the demon he can killed a being if they touched there body will killed instantly. he was known as a monster. And the sin of lust the was a demon known as a gentle men and elegant he was a noble demon and a Duke of the underworld he was known by the lust that because of he's beauty and loyalty to the underworld is more important of him he's name was mephisto and that break of many war that comes in the underworld he experience more than despair and sadness losing someone important to you was so sad and he make a a pack to herself to become strong and that day he awakened he's powerful power hidden inside in her body the aura that different to other all demon fall for him if they see and touched him her power come from the illusion that demon created there own there ambition and dream will come true but the condition was not really happened. It's like a long dreams that happens with the being hold a strong desire to he's dream. And finally the last sin the sin of sloth the duke of hell the dracula the first vampire that exists in hell he was a vampire who hunt demon who drink blood who adaptation to a change of the underworld he was strong vampire.