Saylena Beelzebub

"You really think with your low power you can reach the height of a super devil? The arrogance."

- Saylena's Belief of Power Saylena Beelzebub, formerly known as Saylena Adramelech, is the current Great Satan who has taken on the name Beelzebub. Being one of the three Super Devils of the New Satan Faction, Zakariya states that she was the one with the power and drive to become the devil Lucifer, however she turned this down in order to aid her husband, Ajuka Astaroth, in his evil piece research. Despite her weird version of love for the man, she describes him as a fool for turning down the job and only took it due to his refusal. She is said to be the second strongest devil of the Underworld, behind her rival and co-worker, Nicholas Satan.

Appearance
Saylena is described as a busty and tall woman with long crimson red hair that reaches all the way down her back and bright blue-green eyes. Even though she has the appearance of a young woman, she is indeed centuries years old. Having been cursed by a Dragon God in the past she has two horns on her head, however, she simply puts them away using magic. Her wings have also underwent a sort of transformation, as they are like normal devil wings except they appear to be much thicker and has spikes on both sides. She also has dragon-like scales on her back.

Being a devil king she typically wears  a long, red dress that reaches down to her feet with a furry overcoat and a diamond-like pattern going down her eyes.

Personality
"If you fuck with me, I'll kill you"

- Saylena's Personality Unlike her co-worker Valencia Leviathan, Saylena is noted to be a feisty, arrogant, and angry figure. She has a ill-tempered and aggressive personality and gets angry at the slightest problem so much that she accounts for 35% of the repairs in the Underworld. She hates to be disturbed while relaxing and is known for her and her son's violent interactions. Ajuka Astaroth later states that if it wasn't for her taking the job of a Satan, she would probably just wander the worlds causing mayhem and destruction and getting into fights with anyone who crosses her path. Ajuka also states that while she has these negative traits she still seems to be able to control her temper while working or when she interacts with other factions and leaders, able to maintain a very calm and cheerful facade.

Despite these traits Zakariya Lucifer has the upmost respect for her, admitting that she is indeed his superior in terms of fighting and strength despite them both carrying the status of Super Devils. He also states that she is the one most fit to carry the name of Lucifer due to her power, however she chose to take on the name Beelzebub in order to support her fiancee' work on the evil pieces and maintaining the Rating Game system. Despite only marrying due to wanting a powerful child who could one day rival the current Satan, she is shown to genuinely care about Ajuka based on actions.

She admits that her son is indeed a problem child for both the Adramelech and Astaroth clans, having inherited her temper and aggressive personality but inherited her father's laid-back personality. Because of this, she states that if he were to team up with Rebekah Orias, the Underworld would be doomed. Saylena however seems to care about one thing and one thing only, power. Believing that if a devil isn't born with the natural power they will forever be a weakling and while Nicholas Satan is held on a pedestal for his power, he was naturally born with it and merely learned to polish and control it. She does however show some respect towards the younger generation, stating that some interesting things will probably unfold among them, especially Rebekah Orias, her own son, Nicholas's daughter, and Dahlia Orias due to them all being related to Satans and having exceptional power.

History
Not much is known about Saylean other than she fought alongside the other Satans during the Great War and during the Civil War successfully killing Lucifer's servant, Euclid Lucifuge. She later got married to Ajuka Astaroth and had a son. When he refused to accept the position as Beelzebub due to his disinterest in being a devil king, she took the title and gave up on Lucifer so she could work alongside her husband and help with the development of the Evil Pieces and aiding in their introduction into devil society to repopulate their races.

She was the childhood friend of Ajuka and later married him at first due to simply wanting strong children but later admitting to herself she actually loved him.

At one point in the past her temper led to her getting in a fight with a Dragon God with him cursing her with a dragon-like mutation.

Powers and Abilities
Immense Demonic Power: As the current Beelzebub and Second Strongest Devil in the Underworld, Saylean is immense demonic power transcending beyond the boundaries of the regular Devils, far exceeding even those of the Four Original Satans. Her power is so immense that she is one of the few who could give Nicholas Satan a decent challenge. She also shows no fear of striking or hitting him. As a further testament to her power, Zekariya Lucifer has stated that she is the rightful one to carry the title of Lucifer and her aura could turn a low-class angel to ashes on contact.

Power of Destruction (滅びの力, Horobi no Chikara): Saylena's inherited the Power of Destruction from her mother. She has overwhelming mastery of his Power of Destruction that allows her to eliminate anything it touches. Her mastery over the Power of Destruction is what makes her one of the strongest of the Devils. Due to being cursed by a Dragon God in the past, she is capable of releasing blasts from her mouth. Power of Beasts and Angels: The main power of her father clan, Saylena can leak all the demonic energy from her body, including her Power of Destruction, thus creating a dragon-like independent avatar fighting her enemies while she attacks using angelic-like abilities. Due to the curse from a dragon, when she uses this ability she can also release fire from her mouth.
 * Human-Shaped Aura of Destruction (人型に浮かび上がる滅びのオーラ, Hitogata ni Ukabiagaru Horobi no Ōra): Saylena' true form. She can convert herself into the Power of Destruction that destroys everything regardless of her will. The full releasing of her powers was enough to cause an earthquake felt in the entire Realm of Dead. Using this power, her strength becomes on par to someone like Nicholas Satan who is called the Devil Shaped Monster however she lacks proper control. She can combine this with her Adramelech abilities in order to release devastating holy-demonic attacks.

Master Hand-to-Hand Combatant: Saylena is highly skilled in hand-to-hand combat. She can also combine her fists with the power of destruction, further increasing their lethal power.

Master Technician: Being a ultimate-class wizard type fighter Saylena's power is polished to the point where she can defeat and subdue her enemies on pure magic alone. In terms of technique, Saylena states that she is the strongest.

Immense Speed: Saylena has immense speed far surpassing the average devil. She is so fast that she can create and leave behind after-images.

Flight: Being a devil she can fly using two wings. Her wings having been cursed by a dragon god has caused them to be much thicker and have spikes on top of the wings.

Trivia

 * I thought about changing the creator of the evil pieces however instead I went with a fem Sirzechs x Ajuka AU. However I used the fact that Ajuka wasn't interested in being a Satan in canon to create this timeline.
 * The name Saylena was given to me by my Houki Minami being the combination between the names of the sister of Sirzechs' namesakes, Sayla Mass and Relena Peacecraft (taken from the gundam series like Sirzechs').
 * I was originally going to give her the same personality as Sirzechs however I decided to go with his foil.