When mysteriously transported to a new world, a former yakuza will have to work alongside both pro heroes and heroes in training to get the answers he is looking for.

All Kazuma Kiryu needed to do now once his life was over was to start a new one. Moving away from the big cities and into the sleepy town of Inaba under a false name leaving only one problem: What to do about a certain kid trying to constantly sneak his cat in everywhere.

Being the son of a Yakuza is never easy. Ryu just wants to live his own life by his own rules. However, he was summon to be the familiar of a cute pink hair girl with anger issues and is force to be her servant. But even in this new world, he will never allow anyone to stand in the way of what he thinks is best, no matter who they are. This is the legend of The Dragon of Halkeginia

Or, for those more inclined for spice, "The Story of How I Became The World's Most Badass Hero With The Shittiest Name." Congrats, ladies and gentlemen. It's time I show you all how amazing I really am.

Ladies, gentlemen, kyoudai of all ages, welcome to Oni Ga Shiku Gekijō! Let's have a good time, yeah?

Izuku Midoriya is gonna be a hero. Doesn't matter who says what about it, he only listens to strong bastards and doesn't take shit from weaklings. And the strongest bastards he knows... are the ones who are pushing him straight to the top. Watch out, world! The Mad Dog of Shizuoka... is here!

Nanashi Isamu, a man with a past that's less than exemplary and a future that's uncertain. With nothing but martial arts to back you up, what can you do against super powered shinobi? Nothing, nothing at all. Too bad Isamu has the courage of a lion, cause no one touches those under his protection without a broken jaw, much less leaves in the same state they came in.

(Spin-off of Fragments of Chaldea) Kamurocho, Japan. Chaldean sensors indicate the presence of a pseudo-Lostbelt within the borders of an alternate Japan. With the other Masters of Chaldea off on their own missions, it falls to Master Jacen Kawata Marek, and his small team of Servants, to deal with it. Little will they know they will enter a world of Yakuza shenanigans.

Heroes, villains, and in between forced to play games for their amusement of gods...and readers. Let's see how this goes.

A curse plaguing a village with no foreseeable end to the nightmare is what she thought her life would be, but now when two interchanging souls born of yakuza blood come into the fray, what happens now? What truths will these souls uncover in the wake of friendship, mystery, betrayal, and the unholy horrors that lie in their path to true happiness? It would certainly be surprising.

Mineta and Izuku meet in Aldera years before they head to U.A. What happened? Why does Mineta now carry a dragon tattoo on his back? Why is Izuku wearing an eyepatch and snakeskin jacket? How did they both get so strong without a quirk? Stick around and find out!

Child of Prophecy, Kyuubi Jinchuuriki, The legacy of Uzu, Naruto is all of these things. But after a sudden twist of Fate, he elects not to become a Shinobi. No... the fate of the Shinobi Nations is now in the hands of a brave, bold, and perhaps crazy Yakuza. Beware to those who mess with his family. Warning: Naruto x Harem. Bashing of certain characters. Potential insanity.

-Rated M for Sex and Sexual content- Drago Dragonheart, hired mercenary, took what was supposed to be another job. Take care of some Yakuza lowlives, help the city of Vale deal with a criminal empire. It quickly became... much more complicated. RWBYxYakuza inspired crossover. Yakuza-style showdowns with smut in between.

Kazuma Kiryu didn't think he had much left to do in his life in regards to fighting. But as it turns out, he still had a lot more work to do. But this time, he'll be the one to help share the burden with a broken hero. (SPOILER ALERT: Yakuza 6 endgame spoilers)

Kiryu Kazuma gets dragged into the My Hero Academia Universe. Follow his strange adventures as he interacts with the characters.

Goro Majima wasn't much for taking care of a little kid, but when he finds one living on one of his construction sites, he takes the mysterious kid under his wing. After that, it forces Majima into the world of heroes, fatherhood, dodging his past, and quirks. Man, the Mad Dog of Shimano just can't catch a break, can he?

All Third Year students in Shujin Academy have to spend a week getting work experience to help prepare them for life ahead, and now in his senior year Ryuji's one of them. Although there's very little that could prepare anyone for having to deal with the craziest boss in Japan. Crazy in a good way. Hopefully.

After a momentary lapse in his focus, Akira is expelled from his family and forced to serve a year of probation in Tokyo as a normal student. However, malevolent supernatural forces and a deep conspiracy threatening the world force him to once again take action against corruption. Not as a Yakuza, but as a masked member of the Phantom Thieves.

Trying to follow the demands of the people who kidnapped her husband Yuta; Haruka employs the help of Shun Akiyama and Takayuki Yagami. They're then transported to the Imperial Capital in 1940's Taisho 29. If the Kouma weren't enough to worry about the local Yakuza, the Chinese Mafia, and the Korean Jopok are vying to control the Imperial Theater through any means they can.

Kiryu and Nishikiyama got into a karaoke joint last night. but Kiryu somehow was knocked out unconscious when he was drinking a lot of beers with his best buddy. then, he woke up on a strange land filled with Human-like Animals. how will he cope out in this world? will he find a way back to his home?

Five years after faking his death and leaving Japan, Kiryu is finally living a peaceful life with a family of his own. But a report that someone is hunting down and killing the remaining members of the Kazama Family makes Kiryu return to Japan to protect the last known remaining Kazama Family member, a girl from Osaka and to discover who is behind the killings.

Strange things have happened to the Phantom Thieves, and stranger things happen still when their personalities have suddenly changed. With guts, muscle and outright stupidity at times, the Phantom Thieves will cause an uproar in the streets and back alleys of Tokyo, raising hell as the Yakuza would. Collection of one-shots centred around the protagonists having Yakuza mentalities.

Kiryu stops to help some lost tourists out and gets dragged into a night of blood feuds and dead memes he couldn't have imagined.

It's been a long year but now Sky Finances and the Niijima Law Firm are finally up and running... Or at least they would be if friends and family didn't feel that the people running it could do with a break and a good time.

After three decades, Mr. Shakedown has finally managed to fund his training journey into outer space, and invites Kiryu to come along on his new starship. Little does Kiryu know where Mr. Shakedown's training destination is...