A devastating war between Heaven and Hell has erupted on Earth, turning cities into battlegrounds and humanity into collateral damage. Angelic legions descend from the skies to purge demonic corruption, while infernal armies rise from the depths to claim dominion over the mortal realm. Caught between these forces, the world teeters on the edge of annihilation. Amid the chaos, a seemingly ordinary young boy discovers he carries the dormant bloodline of an extinct and feared ancient demon race beings once powerful enough to challenge both Heaven and Hell. When his ancestry awakens, the celestial and infernal factions immediately mark him as a threat or a weapon. Guided by a mysterious guardian who knows more than he reveals, the boy embarks on a perilous journey to uncover the truth behind his heritage and the catastrophic war engulfing Earth. Along the way, he encounters rogue angels, rebellious demons, and humans gifted with supernatural abilities who defy the war's binary divisions. As he grows stronger, he must confront the terrifying potential of his own demonic lineage-powers capable of saving the world or destroying it. The boy becomes the key to ending the conflict. To bring peace, he must uncover the hidden history of the ancient demon race, choose his own destiny, and decide whether he will stand as humanity's savior, its destroyer, or something entirely new that could break the cycle of eternal war forever.

A boy that was stabbed and near death was chosen by a dark and locked up power freed and got the boy as his host as he tries to remember some of his memories but also live a good life

Issei has been chosen to become the host of Gacha Harem System by the Mother of a Thousand Young.

Everyone called satan many names but the one name everybody feared was the name shadow monarch because he can resurrect his enemies as immortal shadow soldiers at his command but after the great war, they thought satan died while fighting the biblical god 500 years ago but little do they know he was on the earth and had a son and daughter named issei and akame(yes I mean akame from 'akame ga kill', and you will know what will happen next. I forget to say that some parts of the story are from the story "The son of the true satan" on fanfic.net if you want to read it here's the link. https://m.fanfiction.net/s/12368438/1/The-Son-of-The-True-Satan just copy and paste it.

Basically a reaction fic for high school DXD. Also a disclaimer. I'm going off the dub, but also going to be putting in scenes that have been skipped in the anime and "dub" them depending on the scenario. And also combine the anime and LN if possible. Also add minor things to it as well when it comes to the un-animated novels.

Ieyasu Tokugawa or rather Ieyasu Phenex, the third son Of Phenex Family, has been driven away from Phenex Family because Riser slandering him for crimes he had never committed. Beaten and left for death by his family, Ieyasu has been rescued by Tokugawa Family, the human richest family. Decided not to take revenge on Phenex Family, because he wanted to carry on his simple & quiet life with his new family, but fate says otherwise when he begins to enroll at Kuoh Academy, and coming back to the things called Supernatural. Now, Join him in his journey of life along with his brother Issei Hyoudou, and the Crimson Ruin Princess that soon would become his eternal soulmate, Rias Gremory in the world of Supernatural. I Don't Own HighSchool DXD I Don't Own Ieyasu Tokugawa from Sengoku Basara I Don't Own ANYTHING in this story... ALL CREDITS BELONGS TO THEIR OWNER!

"What if" Issei Hyoudou was transported to the Warhammer 40k universe and experimented on. Furthermore I got help from chatgpt, there "might" be some rights and wrongs within the storyline due to either who's who or what a person's status is (think of the chess pieces as a reference either with a chess piece inside of them or not) and there might be some rights or wrongs about religion and/or place's but I've gathered it by chatgpt Furthermore, he's not a pervert in this "What if" story

The Axel Number one adventurer, the one who has fend off against many opponents, the one that defeats the demon king and also known as the panty stealing devil of Axel. Satou Kazuma. the man himself, the true advocate of gender equality. on a night after a few days after the demon king was defeated. Kazuma almost crossed the finishing line with megumin to become adults together....but like before something Interupt him. somehow our adventurer finds himself in some sort of futuristic world that is fighting against the force known as Honkai. can he find his way back home and continue his deed....or will he fight for the beauty of this world....who knows.... [konosuba x Honkai ] *Spoiler for the Konosuba light Novel*

In a world enveloped in darkness and deceit, Issei Saejima, the firstborn son of the esteemed Makai Knight Saejima Raiga, faces a profound and harrowing journey. Once a proud warrior, Issei is betrayed by those he trusted and cast aside, leading him to a state of despair and transformation into a stray devil. However, his fate takes a pivotal turn thanks to his aunt Biku, who uses her powerful Makai magic to restore Issei to his human form. This act of magic not only returns him to his original state but also grants him the mantle of the Garo-a role of great honor and responsibility dedicated to protecting humanity from the forces of evil. With his father Raiga still alive but distant, and his trust shattered by betrayal, Issei's journey is marked by a struggle to reclaim his honor and purpose. He must confront formidable adversaries and navigate a perilous world, all while grappling with the weight of his new responsibilities as the Garo. In a world that has turned its back on him, Issei's path is a testament to his courage, resilience, and determination to rise as a true protector of humanity.