Disclaimer: I don't own Fire Emblem, Mobuseka, and their characters except OC.
Floating in the Holfort Kingdom. Is an unexplored island ruled by a black and red dragon with snake like head, wyvern-esque body, a long tail with a claw, and cold red eyes and deadly venom within the black and red dragon ruling the floating unknown island.
The dragon ruling the mysterious island within the Holfort Kingdom. Is a fell dragon named Alear.
1000+ years ago before the fell dragon was isekai to the otomege world. Alear was about to slaughter a group of divine dragons and their human allies. But fell to a magical trap performed by the divine dragons and their mages that banished her from the continent of Elyos to an unknown world. Which allowed the divine dragons and their supporter to take back the Ring of the Hero-King from her after Alear got banished by the magic portal.
The banishment have weaken Alear and when she woke up, her Ring of the Hero-King was stolen from the divine dragons and their followers. Losing the Emblem of Beginnings give Alear a fury so strong! That she transform into her dragon form and give a roar so strong despite her weaken state that many people native of the otomege world mistaken the fell dragon roar for a natural disaster or a phenomenon of danger.
Everybody become afraid of the roar due to Alear's dragon roar unknowingly manage to cause a storm of fire that burn and poison away cities, forests, islands, and many lives that many people could mistaken that roar for a firestorm. The roar was so disastrous that everybody who survive or spared from the catastrophic fire, that 70% of the people remember that event as the 'Dark Fire' and it cause the survivors and spares to teach the new generations to prepared themselves if that firestorm come again.
Nobody knows on where the 'Dark Fire' came from due to the disaster came out of nowhere. All the people of the otomege world hope that flame of venom would never come again even if nobody knows where the flame came of. Nobody knows, but one.
The one who know what cause the 'Dark Fire' phenomenon was a powerful beast with a majestic trait of a lion and divine aura of a god who witness the disaster from his majestic giant throne on his heavenly exalted palace in the sky unharmed by the dragon roar of calamity. The divine beast have sense fell dragon Alear from his throne and was curious on why this anomaly have appear to his world.
In ancient time the divine beast was once worshiped and known as The Heavenly Lion by the ancient people for his role for creating the otomege world before the event of the 'game' in one of the potential future involving Holfort Kingdom, Principality of Fanoss, Alzer Republic, and other nations.
However time have passed and many have forgotten The Heavenly Lion and therefore the divine beast have become legend and myth before the lion deity was forgotten forever by the people of the otomege world.
Unknown to the people of the otomege world The Heavenly Lion have created aspect of himself to continue his leadership for generations in the shadow. Each of his aspects have contain the soul of The Heavenly Lion and would be responsibly for great events of the otomege world by making each of The Heavenly Lion's Avatars a type of rulers in the end of the great events and removing unworthy rulers. Therefore making The Heavenly Lion and his incarnations the solo rulers of the otomege world he created unopposed by the worthless frauds.
The Heavenly Lion have sense and observed from his holy palace undetected by the weaken fell dragon who cause a disaster to his world and creations. The lion have view Alear a threat to his world and rulership if this anomaly was not taken care soon. However the lion decided to observe the fell dragon for now and will only intervene if Alear threaten his rule of his creations and world.
After Alear finished his draconic roar of rage after her Ring of the Hero-King was stolen by the divine dragons and their supporters. She transform back into her human form by using a red gemstone known as the fell dragonstone that is usable by the fell dragon. After she transformed she walk on road and found several dead men and women on the campsite that were burned, poisoned, or others unaware that she is responsibility for their demise. She stole an unharmed hooded cloak from the campsite and wear it to disguise herself as a normal human without catching attentions from the human of this unknown world she got banished to.
She found a town that is mostly unharmed by the 'Dark Fire' event she caused. Alear used her fell magic to brainwash some human survivors who survive the disaster to gather information she need to survive this unknown world she in. After the hooded fell dragon got the information she need of the world she in, Alear put the brainwashed human survivors to sleep, undo the brainwashing, and remove any memories of her from their mind. The fell dragon use her fell magic to store some stuff that she stole from the broken stores and left the partly damage town of the human survivors.
Alear walked in the burned forest and found a cavern. She use her magic to cast a protected spell on the cavern and forest she resting in to prevent intruders to kill the weaken fell dragon in her rest to recover her power from the banishment while she sleep in the cave. Alear used her dragonstone to transform into her dragon form to prevent herself being killed in her slumber.
4 1/2 years of passed and Alear have regain 90% of her fell dragon power after her slumber in the cave. Alear transform into her human form and put away her dragonstone and plan to recover 10% of her power through a magic ritual. She went outside of the cavern and went on journey to perform her magic ritual.
Alear went to a land filled with snow and ice. The fell dragon perform her magic ritual their because nobody would disturbed her ritual in the cold. The fell dragon create a unique carving and marking with magic in the snow and ice. And at nighttime she perform her ritual to regain her power by dawn in the land of snow and ice. Alear in her dragon form and give a mighty roar of victory that she regain her strength back and become stronger than ever. After her victorious roar, Alear have transform back in her human form.
Once she done with her magic ritual and have 100% of her power back. She used the ice as a substitute for her crystal reading to discover on what happen to Elyos. And to the shock of the fell dragon. The war in Elyos was over. Her father Sombron was killed and all of the fell dragons got killed except for her sister Veyle who survived for being youngest of Sombron's children. The divine dragons and their supporters have won the war but the twelve Emblem Rings have lost their power. Although the rings have lost their power, the divine dragons and their supporters still remain victorious in their war with Sombron, his children, and his followers. As peace have come to the continent of Elyos and divine dragons and humanity have prosper in the era of peace. With the twelve Emblem Rings in the hand of the divine dragons and are guarding them. Getting the Ring of the Hero-King back would be risky for Alear.
Therefore it would be pointless to go back Elyos and fighting the divine dragons and their supporters to get back the Ring of the Hero-King and revenge would be meaningless to Alear due to she have no love for father as Sombron have no love for his children. The fell dragon decide to postpone her plan on getting her ring back from divine dragons in Elyos and remained in this new world she in. Alear gather information of the new world she got banished by the divine dragons and their mages. Once she done gather information, she will make a few plans for the future of the new world she in.
She left the land of snow and ice to explore the unknown world that she was banished to. 5 1/2 years have passed, the fell dragon have finished her journey of the new world that she was exiled to and decided to create a floating island that rival a palace that is ruled by a lion. The fell dragon have accidentally discovered a lion in her journey of the new world that she was investigating in her incognito journey.
Alear decided to used her power to create some type of private island untouched by humankind and unobserved by a lion. She use her fell magic and materials she found in her explorations to start creating her floating island. The fell dragon create a castle in an unholy domain, a forest of gem with a cavern of rare minerals, a snowy wonderland which flow a river and waterfall to a beautiful lake, a hot sandy desert and a tropical beach with delicious fruits, several ghost towns and rural exotic zoo which Alear visit in her free time. After Alear finished creating her floating island in the sky protected by magic. She decided to go to her personal castle to rest and recovered her strength. Inside the castle is Alear sleeping peaceful in her quarter on her comfy bed undisturbed after she finished creating her personal hovering island of the new world she in.
1000+ years have passed, Alear is observing the world in her throne by using her magic. The fell dragon have observe some events of the otomege world she in and learn more about the lion nature she discover in her incognito trip, the creations of new nations and cultures, wars and conflicts, magic and science, reincarnated souls, and more. Alear was about to cancel her spell to eat her brunch.
However she saw a reincarnated soul suffering in the hand of her awful family in her current life somewhere in the Holfort Kingdom. The reincarnated girl suffering is named Marie Fou Lafan who despite the Lafan Household noble ranking of viscount, the household is struggling financially and struggling debt. The pitiful girl being mistreated by her abusive parents and uncaring siblings due to their vice.
Alear was going to cancel her spell after seeing the pitiful reincarnated girl mistreated by her awful family and thought about just leaving the noble girl to her fate. But an unknown rage started swelling within the fell dragon when she saw the young Marie suffering from her bad family reminded Alear of her late siblings deaths from Sombron's hand for being a defect in his eyes.
The fell dragon decided to save the pitiful girl from her fate and deny herself that she only saving her because of her reincarnated soul might be useful for Alear's plans and not because of Marie being treated badly from her abusive and uncaring family reminded Alear from her bad memory of Sombron mistreating her and her late siblings for being defects.
'Can't believe I'll be doing this. But I'm only saving Marie Fou Lafan because she is a reincarnated individual and could be useful for me.'
'Not because the pitiful girl is in trouble. I'm just saving her for my future plan.'
'Marie is only useful to me, because of her soul. I'll discarded her once outlive her usefulness.'
'I'm only using Marie as a figurehead after I punished her family for angering me and use the Lafan household for my own use.'
'The Lafan family's action have ruined my brunch, that why I'm going.'
Alear have walk out her throne and outside her castle entrance. She transform into her fell dragon form with her dragonstone in her hand. The fell dragon in denial flew in the sky from her undetected island floating in the Holfort Kingdom and travel to the Lafan household to save the pitiful girl from her misery.
Alear's action of saving Marie Fou Lafan cause a big change of the otomege world of Otomege Sekai wa Mob ni Kibishii Sekai desu.