What happens if our hero Issei is betrayed by all the girls in his harem and he finds out after his training with Tanin but, one devil helps him.

After defeating Trihexa, Issei Hyoudou expects to be celebrated as a hero. Instead, he's betrayed by everyone he trusted-his friends, his harem, and even Ddraig, the spirit of his Boosted Gear. His perfect brother, Renji Hyoudou, has despised him since childhood, orchestrating a campaign to ruin his life. Renji spread lies to Irina, calling Issei a pervert, and escalated this at Kuoh Academy, labeling him a freak. He turned Issei's friends into a tormenting circle, ensuring his misery. Despite this, Rias forcibly reincarnated Issei into a devil due to his powerful Sacred Gear, though Renji manipulated the canon harem (Rias, Akeno, Asia, etc.) to abandon him, claiming everything for himself. After Trihexa's defeat, Renji convinces everyone to strip Issei of his Boosted Gear, transferring it to him. Issei is left powerless, abused by humans who see him as a monster, and shunned by the supernatural world with anger and disgust. In his darkest moment, Issei gains Geto Suguru's cursed energy manipulation, his racist disdain for "monkeys" (humans), and now extends this hatred to supernaturals. He also acquires the Six Eyes for unmatched perception and Infinity for invulnerability. Transformed, Issei vows not just revenge but to dismantle the corrupt systems of both worlds, forging a new order with his allies: Nyx (goddess of night), Ingvild (a disillusioned half-devil), Athena (goddess of wisdom), Artemis (goddess of the hunt), and Ophis (the infinite entity). This isn't mindless destruction-Issei's purpose is to expose lies, punish the guilty, and create a world where strength and truth prevail.

What if Issei had manifested his sacred gear earlier in life? What if he and Ddraig became friends with Great Red before meeting Raynare? Trained from a young age to be a badass delinquent and the wingman of Great Red, Issei kept his power a secret in anticipation for the day he would finally fight the white dragon emperor. Things don't go quite as expected however, when his infamous rival turns out to be a beautiful silver-haired foreign girl who just transferred to Kuoh Academy with her pale blue-haired friend. How will the devils and angels deal with three extremely powerful dragons going to the same high school? ---------- I do not own anything everything goes to it's respective owner.

Issei Hyoudou, or just Issei was once the Great Pillar of the Factions had lost everything. He was stripped away from everything when someone had framed him for one of the heinous crimes imaginable. He had lost everything including the girls he had loved. Eventually he decides to end it all. by taking his own life. To not bother the people that actually cared for him, being his older sister and his partner Ddraig. He was done living his life for people that never really cared for him or even cherished him since everyone just abandoned him. He did not want to burden those that actually cared for him since the rumours were also harming them, especially his sister who has a massive future in technology and Artificial Intelligence. He believed that associating with her, would harm her in the long run. It would be nothing short of a burden. However, fate had other plans. He survived the suicide and became more intelligent. Issei knew that he had nothing left at his home, so he left and build a nation on his own. Becoming one of the strongest beings of all time, no, the strongest being of all time. The Supernatural and the Human World shall fear the wrath of Doom HighSchool Dxd is owned by Ichiei Ishibhumi Dr. Doom is a character owned by Marvel Comics

Issei Hyoudou was betrayed by Rias Gremory who cheated on him with another man. While he's heartbroken, he got beaten up by Rias' new boyfriend before sending him to die on hit-and-run truck. Unbeknownst to them, an Unknown deity watches Issei's cruel fate as it decided to take his soul and transfer him to the another world where the Sekiryuutei can be reborn as a new person. The Sekiryuutei has turned into a Humanity's Last Hope called Nikke, a female soldier that were manufactured on fighting against the Raptures who are the enemies of the humanity. Also, Issei's identity has changed into a girl, and he or should I say she has a new name called as Rapi, The Red Hood. From now on, Issei or known as Rapi will face her new enemies, until she can go back to her original world where she's belong to and face her new enemies. Will she ever go back to have her memories return? Will she able to get her revenge? Or will she seek peace and freedom from her past and moved on to her new future?

Issei Hyoudou's life was changed one summer when he was whisked away to another world. Now he's back and has an army to back him up. What will become of his life when he has an unexpected encounter in his own hometown?

"So this is what my fate is. Abused and betrayed, huh?" Those were the last words of Issei Hyoudou. Before he was stabbed by Raynare. The usual timeline. With a massive twist of him being abused due to his lack of magic power. However, when he was revived, he was able to be revived, by an unknown factor known as the System. He was tired of everything and was done being nice and kind to others. Deciding to abandon that completely, he decided to become how the clan views him to be. His ruthlessness, callousness and coldness is displayed, as he doesn't care on them, and only values those that have him by his side. His system, now coming to assist him garnered him access to powers and God like Servants who are fanatically and devotionally loyal to him. His powers, made him a target, but no one is safe from his manipulation, no one is safe from his words, for he shall be building a world of loyal beings around him. High School DXD belongs to Icihei Ishibumi

that's right I've made myself improve for this fics revival hope you all enjoy it just like the original one!

Issei Hyoudou, a normal student at Kuoh Academy, wielded a Sacred Gear and held the title of Red Dragon Emperor-a respected warrior despite his perversion. Yet, all of his achievements were rendered meaningless when his younger brother, Dai Hyoudou, stole his glory and accomplishments. Worse, Dai spread false claims that Issei was a fraud. Betrayed by his lovers and friends, who turned their backs on him in favor of Dai, Issei found himself alone. Worse still, the factions saw him as nothing more than a disposable tool, useful only until his purpose was fulfilled. And so, his title as a pillar of the faction was stripped away and handed to Dai. During his battle against Nyx to free Ingvild from her control, Dai seized the opportunity, taking credit for the victory and proclaiming himself Ingvild's "savior." With no further use for Issei, Dai struck him down, driving the Dragon Slayer Holy Sword, Ascalon, into his chest, seemingly killing him. But fate had other plans. From the depths of despair, Issei awakened something... something demonic. A power so terrifying that even a Devil May Cry at its presence.

In this alternate universe, the world of quirks had made most if not all of humanity stop believing in the supernatural. However, two brothers who are the descendants of Ddraig, the Red Dragon Emperor, will show humanity that the supernatural world and its inhabitants are real and how will they manage to thrive between the world of heroes and the world of the supernatural. In this universe, Izuku will inherit One For All (OFA), while Issei will inherit the Boosted Gear. the two half-brothers are the grandson's Ddraig, it means that they're half dragon, and their natural physiology will attract many females from heroines to supernatural female entities who will be after their seeds while helping them alongside to become future pro heroes of two worlds.