MTL - History’s Strongest Senior Brother - ~ 1587. My generation name, need to ask you?

After finishing the DxD light novel, a Warhammer 40K fan loses his life and finds himself, without any clear explanation, in the body of an angel banished from paradise by his Heavenly Father.[Ding!!!][Congratulations, Lord Sanguinius.][You have been selected to become a member of the dimensional discussion group.]“'m just a member... not the administrator?”Author's Note:A story born from a whim, but one that can flourish with your support.## Warning:I do not own any of the works represented here, such as DxD, Warhammer 40k, or others (the cover doesn't belong to me either).This is a harem (small, but still a harem).Author’s note:!!!! Another important piece of information!!!Please, do not read this story if you are unable to distinguish between an Ecchi light novel and religious events or statements related to various sacred scriptures.If that’s not the case for you and you post crap in the comments, I’ll just delete it (this is a fanfic, not a place for religious debates or discussions related to the divine word).Honestly, I didn’t want to include this in the synopsis (it makes me seem like I hate faith when I actually have religious friends), but a VERY intelligent reader managed to persuade me to explain to people the difference between an Ecchi light novel and the precious writings of human history

Taking a quick peek into life on normal planet earth, a vicious alien race called the Xollante attacked the planet with their nuclear weapon. But that's not the story...Shortly before the alien attack, the story was based on an orphan boy named Leo Rayden who somehow discovered that he possessed interstellar communication ability. With this ability, he communicated with a being from a planet friendly with Earth. The being told him that he must warn earthlings of the attack from the Xollante race. But Leo saw himself too young and too weak to carry out this assignment. So, neglecting the warning, the Xollante finally arrived on Earth's atmosphere and just like that, Northern Earth became destroyed... The Space Guardians of Earth couldn't stand the almighty Xollante fleet.And to make matters worse, Earth's core became weak and split.But that is still not the story...A second era now was set in place after the nuclear attack. Earth became split from the core after the nuclear attack and slowly, the Northern and the Southern part of earth started drifting apart. The wild Xollante race occupied the North, while the surviving earthlings occupied the South.But now Earth must do everything to destroy the Xollante race and send them away from the planet. And that was when another scheme was set.Earth had discovered a Lone and barren mutant planet called Luxus which gifted earthlings with superpowers. Humans call these superpowers “Quirks”. So, for the grand scheme, Earth's authorities started sending men and women on the planet to become mutated in readiness for the huge war that was looming against the Xollante. Earth was now full of mutants, and soon enough, non-mutants became outcasts in the society. The system only favoured the powerful and scorned the weak. And that was when Leo woke from his coma of 78 years on planet Luxus.And this, guys, is where the story starts...Leo managed to survive the nuclear attack with some strange hidden quirk he didn't know he possessed. When he opened his eyes 78 years later, he was on planet Luxus, being taken care of by his mind communication partner, Loca. But there was no time to frolic. He has to get back to Earth and try to rediscover that powerful quirk that saved him from the nuclear attack. To do this, he must attend Earth's quirk academy to learn all he needs to get stronger. He knew somewhere within him lies the most powerful quirk ever in existence, and his only aim is to rediscover it. He must become stronger, beat earth's power system and one day help the top earth Avengers fight off the Xollante race.But first, he must overcome every obstacle thrown at him from his fellow Earthlings and fellow mutants before he could even think of fighting the aliens.He must attain the highest rank level possible to atone for his sin as a child for not saving Earth when he was informed.His guilt being the major drive, he soon found that the highest rank was within reach of him, but can be pay the price?This story incorporates the use of hi-tech weapons and ancient weapons, and the use of acquired quirks to wield these weapons to victory. It is truly a story about weak-to-strong, action, survival, mutants, adventure, academy and superpowers.A mix of sci-fi and fantasy, yes.And yes again, local beast weapons have been smuggled into sci-fi. Let's deal with it.

In the northern part of the world, a long-standing battle between various races and the demon race has finally reached its end. The Demon Lord, a figure with black hair, red eyes, rules from her obsidian palace, having repeatedly defeated the Goddess, the strongest being in the world. However, she refrains from killing her, knowing she will only be reborn to lead another attack.As the goddess kneels before her, badly injured and helpless, the sounds of explosions echo outside, signaling the imminent victory of the alliance. Despite her immense power, the demon lord acknowledges the demon's overall weakness compared to humans and the Alliance. The development of fighting energy and mana has allowed ordinary humans to fight demons, leading to the demon army's defeat.Aware of the Alliance's intent to enslave the abyssal demon, the Demon Lord decides to cast a forbidden spell that will cost her life. As the Alliance forces storm the palace, they hesitate upon sensing the spell's energy. The Demon Lord vows to resist and be reborn to save her people.Meanwhile, the goddess reflects on the demon lord's past treatment of her and acknowledges her respect and dedication to her people. As the demon lord prepares to cast the spell, the goddess asks if she can abandon her plan and live freely. However, demon lords are duty-bound to restore the demon race's glory and protect her people.Understanding the demon lord's resolve, the goddess readies her sword, intending to clash with the demo lord's forbidden spell. The resulting explosion creates a mushroom cloud, marking the end of the conflict and the start of a new era. The Demon Lord and the Goddess become historical figures, their stories occasionally told.