An ordinary person finds himself in the world of High School DxD (AU), where a System grants him immortality and the complete set of Vritra Sacred Gears. As he explores various worlds, he evolves into the Black Dragon King. Throughout his journey, he encounters and saves numerous heroines, forming deep bonds with them and gradually building a harem of companions.

Issei fills out a mindless coombrain fantasy CYOA, gets the powers, and the Editor is dead so he can just get his dick wet. He gets his dick wet. Also, there's demons and angels and such, but he doesn't know that, so he mostly focuses on getting his dick wet at first.

In light of recent events, Blacklight - an organization whose job is to eliminate threats from both man and the Moonlit World - dispatched its newest operative at the request of one of the Three Factions. But to Mitsuki, this long-term assignment was just an excuse for her to finally go home. At least, that's what it was supposed to be.

Every DxD fan knows that there is only one pure-blooded living Lucifer that is Rizevim Livan Lucifer but what if he had a brother who was a high schooler in his previous life and by some chance of fate he became Cain Livan Lucifer. Follow Cain as he becomes the strongest in DxD while enjoying life and giving hell to his enemies. Gender Bender! Fem! Sirzechs! Pre-cannon fic!

Being awake in a secret laboratory isn't something I would expect after getting struck by lightning. Nor when the first person I met was a particular green-haired mad scientist from a verse that I am very familiar with. (SI-OC son of Ajuka)

Ashikaga Takauji spent his days in a cyclic mix of brilliance and boredom, the former shining through him as he went about his day, and the latter plaguing him endlessly the minute his robotic routine came to an end. But eventually, something appeared in front of him. [Would you like to awaken your Mana Core? Y/N.] And with that, a new adventure started.

Transmigrated into DxD World—Kuoh Town, Hibari Kyoya. an average student, spent 18 agonizing years in the world fully aware of the dangers, knowing he is utterly powerless in a world of gods and monsters, Until... [Ding! Sign-In System loading… 20%… 50%… 80%… 100%.] Destiny, it seems.. has a cruel sense of humor. A [Sign-In System], long overdue, finally bursts to life within him

Una adaptación de Zia In The Victory Parade By Dtrocked. Todos los créditos a él.

Question? What would happen if Hyoudou Issei was transported to a cultivating world? Hilarity, adventure, and Oppai. Watch out world the Oppai Dragon is coming.

Thunder, a destructive, brilliant power. One who best represents this force of nature would be the Gods themselves. Thor, the Norse God of Thunder, prevented the fall of Asgard at the cost of his own life. Now, centuries have past and a new God of Thunder shall bring glory back to his name!

Hello, want to watch something familiar but with a twist? If so come watch as a human plays with something bigger than he is. Warning: read with a handful of salt

Rising through the ranks of the Underworld isn't easy. Ancient devils don't like giving up their power. I may not have been born among the Pillars, but I have my own advantages, and a willingness to abuse them to their fullest potential. I will make the most of this second lease on life.(DXD SI)

17 year old Sukehiro Natsuki was trying her best to fight against the life of poverty and isolation that she was born into. Now given the chance to go to Kuoh Academy, Natsuki finds herself thrown into a world she never knew existed as she tries to find her place in it and discover who she really is. Warning OC Futa/G!P No Harem for OC but a polyamorous relationship, Issei/Harem

Shin was a 16-year-old kid when he was killed by the almighty truck-sama, miraculously Isekai'd to the DxD world. Naturally, as a hormonal teenager with future knowledge of the show, canon was doomed the instant he was reincarnated. OC MC! Will divert from canon! Smart MC! Crack-ish! Semi-OP MC!

A teenage boy with mental health issues enrolls at Kuoh Academy and encounters a teenage girl with the attitude of a delinquent. Both of them have powers that make them targets and end up getting dragged into the Supernatural. So much for a normal school life. Rated M for Blood, Lemons.

"One day, I opened my eyes, and found myself vomiting off the top of the mountain. Definitely not the best way to start my day, or evening at that point. Then I got attacked by a mutated snake, taken in by a perverted virgin kitty, and went back home to get blown up by a dragon. Twice. And that's only the start. At least it's exciting? This new life of mine." (Demigod SI-OC)

¿Cuál es el verdadero potencial de alguien que ha poseído el poder del Dragón Emperador Rojo no solo una, sino dos veces? Ven y descubre que es lo que sucede cuando un portador del Boosted Gear renace nuevamente con este mismo poder.

Koujiro Shidou never had what you'd call a normal life but he made it work despite everything. Despite his sister Irina's warnings, he goes off to an idol concert that changed his life forever. Discovering that he's not only not human but has the spirit of Imugi, the Primordial Demon, sealed inside him, Koujiro leaves his life as a human behind in order to find out who he really is

"Not all god-given talents are meant to be polished." I knew that better than anyone. Some talents—and the desires they awaken—don't have a place in this world. So, I, Hyoudou Issei, lived my life as a regular high school student. That is, until a fallen angel dragged me into a chaotic world I never thought could exist. ...Maybe this is where my talent was meant to shine all along.

Transported from a dystopian future, a lone robot finds himself in a world where humans are unaware of his existence—and blissfully ignorant of the supernatural forces lurking around them. As he grapples with his own robotic identity, alliances with high-schoolers and mythic beings alike could determine the fate of two worlds.

When an alien from a distant planet crash-lands in a world teeming with demons, angels, and other supernatural beings, he must navigate the chaotic landscape of high school life while hiding his true identity and searching for a way home—risking everything as a brewing interstellar conflict threatens to expose him.

Born with blue sky eyes and white snow hair, Issei was different from the others children. After his first and only best friend, Irina Shidou, left his life, his parents took him to a trip to Kyoto to cheer him up. But that trip would change his life completely, and give him answers of why he was born with those two traits, along with many adventures and challenges for him.