The history of the Dragon Acnologia from the anime series called Fairy Tail.
Backstory[]
Acnologia as a human before transforming into a Dragon.
Prior to the beginning of the series, the man that would later become the infamous Dragon King was once a regular human over 400 years ago. He lived his life in his hometown, Montes Secreta, where he worked as a doctor and aided those in need with his healing magic. He had a close bound with the guardian that protected his home, Acnologia. Sometime later, when Acnologia and other dragons discovered the true danger humans were to their race thanks to their new developed Dragon Slayer magic, Acnologia betrayed him and led an attack on his hometown, killing his family and people. This led to him to gaining an intense hatred for all Dragons, causing him to seek out on a journey to learn how to obtain and use Dragon Slayer Magic. As a result, he became one of first Dragon Slayers during the Dragon Civil War to support the coexistence of both humans and dragons. However, he and other Dragon Slayers eventually disregarded their cause and slaughtered dragons out of wrath.
It was around this time that the man named himself after his former guardian, as his name was the only one he could remember. Thus, the man took on the name Acnologia for himself and ensured that those who would later despise him will never forget his name. Acnologia's relentless hatred for the dragons led him to countless bloodshed and murder. His hatred for all dragons only amplified after seeing Sonya being killed. With the overuse of his Dragon Slayer Magic corrupting him, Acnologia physically turned into a dragon and proclaimed himself to be the Dragon King. This event was forever etched into history as the Dragon King Festival.
Despite his vast power, Acnologia remains isolated from humans but he is still feared by the people of Earth Land as he was credited with the single-handed destruction of an entire country. At some point, Acnologia ran into Gildarts Clive when the Fairy Tail Guild S-Class Wizard was on a "Century Quest" at Zonia Mountain. In an instant, Acnologia defeated Gildarts and took his left arm, left leg and gutted his body, leaving him to die before flying away though Gildarts managed to survive, albeit with difficulties and permanent damage. The 5 Dragon Gods who ruled over Guiltina were said to have fled in fear of him, though it was unknown why Acnologia didn't kill them (he possibly was unable to locate them due to their ability to hide in human forms), and their powers grew to where they were deemed equal, if not, even more powerful than Acnologia. However, he did confront one of the Dragon Gods; Aldoron, who he defeated and injured so grievously he had to rest for decades to heal his injuries.
Tenrou Island arc[]
Acnologia comes to Tenrou Island after sensing the immense amounts of magic power generated by the battle between Fairy Tail and Grmoire Heart, and the negative emotions unleashed during the battle. After arriving, Acnologia fights the Fairy Tail members on the island. In the battle, it causes so much devastation that Makarov is forced to hold him off to allow the other Fairy Tail Mages to escape. As the two fight, Acnologia is eventually able to knock Makarov to the ground. Just as it is about to kill Makarov, all of Fairy Tail comes back and starts attacking the dragon. Acnologia then flies into the air, and seemingly destroys Tenrou Island, and all the Fairy Tail members on it with his Dragon's Roar. The few people who escape Tenrou Island, such as Zeref Dragneel, Ultear Mikovich and The Magic Council can only watch as Acnologia finishes his task.
After these events, Acnologia takes back up to the skies and disappears from sight. However, unbeknownst to the dragon, his targets survived; protected by the power of Fairy Sphere where they remain trapped for the next seven years.
Tartaros arc[]
The return of Acnologia.
Acnologia appears one more time at the ruins of Cube where the battle between Fairy Tail Mages and Tartarus takes place. As he nears his destination, both Mages and the Demons take notice of his presence. Effortlessly, Acnologia creates huge explosions with his breath, as well as shockwaves with his wings alone, much to the Mages' despair. He approaches Mard Geer and the Demon deduces that the Black Dragon is after E.N.D. However, Acnologia's rampage is temporarily interrupted, as Igneel, released from within Natsu's body, attacks him, with an intention to stop his rampage. Acnologia and Igneel begin to clash, while all the Mages below watch in horror and awe. After Natsu jumps on Igneel, the latter fires a huge flame blast towards Acnologia, although the beast easily shrugs off the attack and comes out of it unscathed. Acnologia is then later punched by Igneels' version of Fire Dragon's Iron Fist, but he shrugs this attack off as well.
Igneel vs Acnologia.
Shortly thereafter, taking advantage of Igneel's worry for Natsu, Acnologia fires a Dragon's Roar at his opponent's head, but misses. Acknowledging Igneel as his enemy, Acnologia speaks to him, citing his displeasure at the existence of Dragons; he ends his comment by saying that he will slay Igneel. As the fight goes on, Acnologia tells Igneel that he won't escape. However, the latter explains that he didn't intend to run, and that he moved so that he can fight without holding back, in order to defeat the other creature. However, Acnologia says that it won't be a simple defeat, but a one-sided obliteration. Later as the Face bombs across the continent begin to detonate, Acnologia is sent plummeting towards the earth extremely wounded, much to everyone's surprise. His body is then used as a victory stand by Igneel, who announces the arrival of the other Dragon Slayers' foster parents to stop the mighty threat of the Magic Pulse Bomb.
Acnologia kills Igneel.
Acnologia doesn't stay down for long though, as he slashes out at Igneel and takes their battle back up into the sky. There, he questions Igneel's motives for having the other Dragons hide inside their foster Dragon Slayer children, and, when Igneel asks if he is scared of E.N.D. reviving, berates the Fire Dragon and declares that all he wants is utter destruction. Acnologia quickly overwhelms Igneel and repeatedly crushes his torso with his claws whilst screaming about destruction; he also derides the Dragon for being the Flame Dragon King yet not being able to fight equally with him and continues his relentless assault. Acnologia is then quickly overtaken by Igneel and loses his left arm. However in return, Acnologia destroys nearly the entire left half of Igneel's torso and then kills him with his Dragon's Roar.
Avatar arc[]
Acnologia meeting with Zeref
1 year after losing his arm to Igneel, Acnologia accepts Zeref's proposal to meet, and does so at an undisclosed rocky terrain, albeit in his human form instead of as a Dragon; Acnologia gets straight to it and bluntly questions what Zeref wants. However, he is met with inquisition, as Zeref points out that Acnologia could rule the world with his power if he wished, calling his motives unfathomable, though Acnologia simply says the same of Zeref's motives. Acnologia then listens and remains calm as Zeref tells him that he will not join or fight against him; rather, he will kill him along with everyone else in the world and fathoms that Acnologia has been waiting for someone to give him a true challenge and states that he will gladly take on the role of that challenger, as he is aware Zeref would not dare take him on without any power boost due to Acnologia being more powerful than him. However, Acnologia gives a sly grin as Zeref tells him to wait for the ultimate clash between human, Dragon and immortal to approach.
Dragon Cry[]
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Acnologia in Fairy Tail: Dragon Cry.
In the post-credits scene, Human Acnologia picks up a ribbon that belonged to Sonya (The reason behind Acnologia's life goal.) He reminisces when he walked into a cave and saw flashback where Sonya being badly injured by a group of dragons, which infuriates Acnologia and he kills them all afterwards. Acnologia callously destroys the ribbon, most likely recognizing it as Dragon Cry despite it not emitting any more power and thus must be destroyed to fulfill his life goal, although whether he is aware of Sonya being alive and the fact she fused with Animus is unknown, but it is likely that he somehow absorbed the information out of the ribbon as the flashback includes that, though whether this makes Acnologia resentful of Sonya as she prevented him from completing his goal until Animus died at Natsu's hands, and says "what nonsense" before walking away. Unaware that Zeref and his followers were watching him from afar.
Alvarez Empire arc[]
Still residing in the cave where he and Zeref conversed last, Acnologia mentions that where his stolen arm still hurts; adding that he will destroy everything at the Dragon King Festival, he gets up and takes on his Dragon form, after which he shouts that he is the true "Dragon King". As he proclaims his supremacy, however, a shadow-like substance extends from where his right arm used to be.
Acnologia killing God Serena.
In his human form once again, Acnologia later appears at the eastern war-front, just outside the borders of Bosco. His immense power is felt by the Mages present. There, he stands before three Shields of Spriggan—Jacob Lessio, August and God Serena—the latter having just ended his battle against the remaining Gods of Ishgar, as well as Jura Neekis. Claiming that he can quite clearly smell the stench of a Dragon, Acnologia senses the source is God Serena, with the Shield of Spriggan seemingly over the moon about finally encountering the "Dragon King". Before God Serena can finish his rant about how difficult it had been to find him, Acnologia, uninterested in hearing anything God Serena has to say, simply and ruthlessly effortlessly kills him, tearing a hole in the side of his stomach with a single swift swipe of his hand. As the surrounding Mages watch on in awe, Acnologia proceeds to casually walk away from the scene, leaving the collapsed body of God Serena behind.
As he takes his leave, he states that there are still seven more Dragon Slayers left, indicating that he intends to annihilate each and every one of them, until all remnants of the Dragons have been wiped out of existence. As he goes in search of Gajeel, he senses that Gajeel had perished, leaving only 6 Dragon Slayers, but before he can search for the rest, he is then intercepted by another one of the Shields of Spriggan named Irene. He tells her to move but she refuses to comply, as he notes on her bravery to face him, despite knowing who he is. Acnologia wonders if she can entertain him for even a moment, which she confirms.
The two stare each other down before Irene uses her magic to create a sphere of fire, which surprises Acnologia who quickly disperses it but is blown back by another attack, a forceful shockwave. Catching himself, Acnologia notes that must be an enchanter before retaliating with his own magic that erupts from the ground creating a large crater. It causes Irene to leap in the air, after acknowledging their strength, Irene ponders on what will happened to Acnologia once Zeref obtains Fairy Heart and uses it against Acnologia. He then asks Irene if she believes Zeref has the power to defeat him as she states he will. She then uses magic that Acnologia surprised that he is unfamiliar with as Irene states it's Magic of the new era. He then asks if she enchanted the Earth but she says only the country of Fiore. She used a Spell that enveloped the entire Kingdom of Fiore called Universe One. He then asks her name she reveals herself as one of the Spriggan 12 and she wishes to see Acnologia again before disappearing. As a result, Acnologia was warped somewhere far away from the shrunken landmass that is Fiore.
Later, Irene is defeated and the Universe One spell starts to dissolve, allowing Acnologia to re-enter the war. He resumes his hunt for the Dragon Slayers and appears where Wendy and Erza are, saying that he is tired of this boring world. Erza and Wendy ponder over the identity of this man (since this is the first time they've seen Acnologia in human form) but recognize his magic power. Acnologia ignores them and walks over to Irene's corpse remarking that she was the one who invented Dragon Slayer Magic which makes her the reason for his power and his actions. He then destroys her corpse by stomping on it while laughing in delight at his vile actions. Erza and Wendy are left shocked and terrified by his actions.
Acnologia continues to destroy Irene's corpse until Erza demands him for him to stop desecrating the dead, apparently out of respect for Irene killing herself rather than killing her and possibly some gratitude and familial bond. Stopping to look at her, Acnologia notices her and points out that she has the same smell as Irene. He then recognizes Wendy as a Dragon Slayer while Erza questions him over his identity, as he smiles in response to her question. Wendy then recognizes his magic power and figures out his identity as Acnologia, which she tells a surprised Erza as Acnologia attacks them only to be blocked by Jellal. Jellal wastes no time in attacking the dragon king but Acnologia does not bother defending and takes absolutely no damage to their gathered surprise Acnologia devours Jellal's magic revealing that while he doesn't have a specific Dragon Slayer Magic element his magic makes him immune to all Magic. Acnologia then transforms into his Dragon form. Wendy refuses to back down and prepares to fight Acnologia, but Acnologia is rammed in by the Blue Pegasus's flying vehicle Christine. Erza, Jellal, and Wendy get on Christine with Acnologia chasing them. Acnologia continues to chase them, they fire a giant magical beam at him but Acnologia devours it. So they try bullets but Acnologia dodges them. While in Christine Anna Heartfilia (Lucy's ancestor from the past who went through the Eclipse gate with the other Dragon Slayers) claims that she has found a way to seal Acnologia in an endless void of space and time.
The Christine makes it to the time lapse with the pursuing Acnologia. However, the dragon king goes through the time lapse due to it being sealed. Acnologia clings to the ship but Erza has Ichiya destroy the mechanism to make it possible for Dragon Slayers to stay aboard the ship triggering Acnologia's weakness of motion sickness. After puking, Acnologia resumes his air board chase. He soon catches up to them and starts tearing Christine apart trying to get to Wendy. He claims that Dragons are unnecessary in the world.
Jellal then challenges Acnologia to give Anna and the others time to open the Time Lapse themselves. Jellal attacks Acnologia but is ineffective. Acnologia then uses his Dragon Roar against Jellal resulting in the ocean being split in two. Jellal dodges but figures he won't last long against Acnologia. The Time Lapse opens on it's own (Due to Zeref drawing power from it) but Acnologia sees it, blowing their element of surprise. Jellal then tries to lure Acnologia into the Time Lapse. Acnologia then grabs Jellal and starts to crush the life out of him.
Soon though, Anna and Ichiya drive Christine to save Jellal by pushing an enraged Acnologia at full speed into the time lapse, sacrificing themselves to put an end to Acnologia's reign of terror once and for all. Acnologia reacts in shock as his body is distorted and he at long last disappears into the time lapse, taking the Christine and its co-pilots with him and seemingly bringing the war to a close.
Later on, Wendy notices a crack in the sky where the time lapse was, indicating the Black Dragon's attempts to free himself are proving successful. He punches a hole in time and space and exclaims that by devouring the power of time and space, the power flowing through him reminds him of the time when he first mastered Dragon Slayer magic and became greater than a king.
Declaring that all the world belongs to him, he revels in amazement at the fact that he cannot even fully control the power of time. He uses his new power to launch destructive attacks on Magnolia before using his power to cause the remaining dragon slayers to disappear.
In another realm, Natsu wonders where he is as Acnologia appears in his human form and declares the world to be his as he stares down the fire dragon slayer.
As it turns out, that when Acnologia was trapped the unstable time magic had split his body in two with his physical body rampaging through the real world as his spiritual body, which maintains the power stays in the ravines of time where he keeps the dragon slayers to use them to stabilize his magic.
The human Acnologia stares Natsu down, as the latter recognizes his power and realizes his identity as Acnologia as the latter states will be the last as he sees his fellow dragon slayers inside crystal pillars. Acnologia states while his physical body will destroy the world, his spiritual one will destroy the dragon slayers as Natsu (recalling his foster father's death at Acnologia's hands) tells him to stop talking as reveals his intention of trapping Natsu.
Acnologia begins crystallizing Natsu's body as the fire dragon slayer still weakened from his fight with Zeref is unable to stop it which Acnologia points out before laughing at the extent of his actions. However, Wendy manages to break free of her prison and saves Natsu to Acnologia's surprise as the other dragon slayers break free having heard their friends from the other realm calling out for them. The seven dragon slayers gather up to battle the Dragon King determined to slay him once and for all as Acnologia prepares to show them why he is called the King of Dragons.
The Dragon Slayers begin their assault on Acnologia with Wendy enhancing their magic but each attempt is vain. He claims that all of the Dragon Slayers together are just as strong as the power in his finger. Meanwhile, Acnologia's physical body starts to destroy Magnolia and the world following after. Back in the Ravines of Time, Acnologia tells the Dragon Slayers his long term goal to destroy the world. Natsu then says that world isn't weak enough to be destroyed by the likes of him.
The Dragon Slayers continue their desperate fight against Spiritual Acnologia but have no luck landing any attacks on him. Natsu says he's the last threat but Acnologia says he hasn't done anything yet but will end it. Meanwhile, Acnologia's physical body continues to destroy Magnoilia firing his breath attack everywhere. The Guild wizards try to escape on the boats but Acnologia destroys them. Lucy and the other wizards gather together together to induce Fairy Sphere while Erza, Mirajane, Gray, Juvia, and Lyon fight Acnologia's physical body to try and give Lucy and the others some time. Meanwhile, Spiritual Acnologia has the Dragon Slayers on the ground bleeding and helpless. He says that he lives to slay all Dragons. Natsu then begins to laugh at that comment. He points out that Acnologia himself is a Dragon and says that he's missing his own head to slay. Natsu then says that the real Dragons are gentle and that though he and the others have received the power of Dragons they are still humans. Acnologia gets angry at what Natsu said about the Dragons being gentle and releases a huge amount of magical power into an attack. Natsu then emerges from the smoke and the other Dragon Slayers give Natsu all of their magic, putting it into a single Fire attack as Natsu charges at Acnologia full force.
Acnologia's breakdown.
Acnologia is then trapped in the Fairy Sphere, but Lucy didn't have enough magic power to keep him trapped for long. So every wizard on the continent gave Lucy all their magical power to keep Acnologia trapped.
Spiritual Acnologia is then effected by the Fairy Sphere, unable to move allowing Natsu to finish him off with one final attack. Natsu gathers all the Dragon slayers power into one giant Fire Dragon Iron fist and hit Acnologia with it. As Acnologia is finally defeated, he desperately tries to cling to life, wanting to cause more destruction and pain, but Natsu, having seen through his menacing personality as being a façade to hide his pain, tells Acnologia that he can't have everything and that he should cherish what he had even if he had lost it all. Moved by Natsu's sympathy and finally realizing the error of his ways, Spiritual Acnologia accepts defeat and acknowledges Natsu as worthy of the mantle of Dragon King before finally vanishing. With his spirit gone, Acnologia's physical body dissipates into nothing as well, putting an end to Acnologia's reign of terror once and for all.