If you can calculate every position of every atoms and their momentum in the universe, it is possible to effectively foresee the future, or so Laplace said. In the end, the world's just a series of zero and one, and the infinite number between them... Devils? Demons? What's that?

Issei Hyoudou may look like a perverted loser at school, but appearances can be decieving. Underneath that persona he was a brutal, unforgiving assassin with little to no remorse. He was loyal to no one. Did what he had to do,killed who he had to kill in order to survive. There was no one in this cruel world he cared about. But everything changed when he met a certain black cat.

Uno simplemente debe de aceptar que hay ciertos tipos de eventos que finalmente ocurriran, no importa todo lo que intenten para cambiarlo, ¿Pero que pasa cuando alguien a pesar de saber lo que le espera intenta alterar el orden natural de las cosas? Es un buen ejemplo que podria verse realizado en el presente, en un futuro cercano derivado de las decisiones, o yace en el pasado...

After finding out he is being used and tricked by his friends at the ORC. Issei can't take the betrayal and snaps releasing all the pent up hurt and anger he has. After this little out burst and the betrayal of Ddraig the dormant power of the abyss Issei has had since birth breaks free. The true dragon of all dragons helps Issei on his path of revenge, and Love?

What if Issei put 2 and 2 together and found out Rias planned it all? His murder? Her Intent? Who else was involved? Was he just a tool? Find out in this alternate take that happens just after DxD Born.

Issei had always know how to sew. So he decide to further his craft by becoming a cosplay costume designer. But in all the years since he started his work, he don't think that making a costume for the most popular girl in the school is something he would do. [Probably 3 to 5 chapter long only. We'll see]

A story of reincarnation in Highschool DxD where a random teenager got a second chance in life but first s(he) must deal with nonsense of the world s(he) finds h(im)erself while also trying to not get caught up with the problems of having a existential crisis, marrying a certain guy that is perverted, and many many more! (AU)

Miracle or Mistake? That was a question he asked himself for as long as he can remember. Unfortunately, he would have to find out the answer the hard way. But, how does the secret child of a forbidden union between one of the Four Great Satans and one of the Four Great Seraphs is supposed to fit in? (Complete AU) {OC/Multi}

After the sealing of Trihexa, one might expect Issei to finally find peace. However, a single discovery changes everything. Now on his own, confused, and his heart in pieces, Issei and the one person who sticks beside him must race against an ancient being whose machinations could spell the destruction of all Creation. Still rated M for safety! (Indefinite Hiatus)

The Gamer ability is one of the most mysterious and powerful abilities, Now given to a 35 years old working student after his death, what will he do? What the heck is he supposed to do when he got dragged to the plot, while trying to stay away from it? Gamer Fic. Rated M to be safe, lemons eventually. OC X Multi. I suck at summaries so I hope this would do.

Un dia simplemente deseabas cruzar la calle como cualquiera, hasta que un camion no se quiso esperar el alto como buen Mexicano, y al momento siguiente reencarnas en el MC de una de la historias que ha leido en su vida donde el Harem es seguro Terroristas, Locos por las peleas, Dioses y/o Viejos con palos en el fundillo le espera a este chico que su vida dio 360 Grados, Self-Insert

Ever see something unbelievable happen before your eyes? Well, Issei is no stranger to that. Cooped up in Oni's Psych Ward for ten years straight due to a strange voice in his head, Issei has finally come to terms with what happened with the death of his parents. He's sent to Kuoh Academy, hoping to start over fresh. It was all going good. Until a Fallen Angel showed up.

Issei didnt know what it was to be a shop owner. Hell, sometimes he didn't know what it was to be a normal human anymore. Weird. That's what everyone would usually call him. Well, at least he has his coffee and sweets. Maybe he should try and make some friends along the way. Find something to make him feel normal.

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Come, come, dear readers. Welcome to the inner circle of madness, where shards of potential and sparks of inspiration come to rest. Here, Riser is puzzled by humans' interactions, Hikari bakes cookies for Azazel, Tiamat is slightly less intent on murdering Ddraig and Issei wants to be a good boy. AU! Crack! Snippets of DoR that couldn't make the final cuts but still deserve love.

I would have preferred to keep away from the main story but... fate is not having any of it. (OC-SI) (Mostly Canon Pairings) (Some Magic World-Building) (FLUFF here and there) (Also some X-Overing) [Rework time!]

Issei un chico normal hasta done se puede decir y Etna su entraña cuidadora, después de su momento de rutina decide que es hora que aprenda su legado.

Issei didnt have that special moment in every boy's life. Now in high school and taken into the supernatural, how can he overcome the most powerful of foes, the onslaught of shotacon-loving supernatural women, and become the most powerful Red Dragon Emperor? He hasn't even hit his growth spurt yet. He's a late bloomer. A LATE BLOOMER GODDAMN IT!

In the history of the Devil Civil War, one nameless rogue will rise to infamy against the devils he hates so much. Along the way he will encounter heartache, lose and even a bond that would last long after he would fade into the pages of history. Here is the history of Rowland Moechor, the man who would call the Sitri heiress his partner. the only true friend he ever knew.

What if issei never join rias Gemory peerage and what will issei become will he become a killer or will he be a hero Stay tune to find out what issei fate or destiny is

Un mercenaire est engagé afin d'aider Rias Gremory et son peerage dans leurs futurs combats mais que se passe-t-il si Rias le connait personnellement : "C'est impossible ... " Dit-elle en le voyant. OC x Harem et Issei x Harem

Issei considered to be a Legendary hero that retire to live his dream of normality but was shattered when a encounter of the supernatural. One should never attack him cause he will bounce back and punch HARD! (Horrible at summary but I let you be the judge of that)(Harem otherwise it won't be DXD) (It is a muiltcrossover and AU as well) Inspired by A Legend Reborn!

When you are a immortal trapped in the body of a teenager for all eternity, life can be a little dull. You might start wanting to end it all, but you can't die. What are you to do? And now he had to deal with supernatural beings! (Might change Genres)

AU to my's Legend Resurgence. If you haven't read the Legend Resurgence, then I suggest you read that first before you read this one. Expect some lemons without warning! (Horrible at summary but I let you be the judge of that)(Harem otherwise it won't be DXD) (It is a mulitcrossover) Inspire by all DxD stories of Issei joined the fallen angels

Issei found out the truth about his resurrection. He also finds out how everyone wanted him to be and what they truly thought of him. So he left, only to return later and show them all that he is more than just a tool. With Yasaka's help, he's a person who'll fight for those who treats him right as he swore himself to protect the Yokais at all costs.