Koichifan fiction

Character · 5,023 works

Koichi turns up in 10 works open to everyone here. The average one runs about 10,900 words. Read any of them in your browser, save it as an EPUB, or listen to it.

Works

Some results are potentially explicit

Everydayhost

Maddyloveskoichi

by Ifart

I saw this person on tiktok so I'm making a fanfic of them and their favorite character

General 419 words 1 / ? ch In progress

Everydayhost - Freeform

JoJo's Bizarre Adventure

The Grass Can Always Be

by jojotier

Koichi meets Kakyoin Noriaki for the first time- and accidentally tramples all over his reunion with long time boyfriend and resident mysteriously unnerving visitor Jotaro. All Koichi wanted was answers about this stand business...

Teen 3.2k words 1 ch Complete 1.3k kudos

Fluff · Kakyoin Noriaki Lives · Alternate Universe - Everyone Lives/Nobody Dies · Reunions· +8 more

My Hero Academia

My Dearest Gentleman

by NekoAisu

Koichi Haimawari is a man of specific moral character. Not that it keeps him from needing to use his tuition money for dinner, but at least he tried.

General 1.5k words 1 ch Complete 482 kudos

My Hero Academia: Vigilantes · Rare Pairings · ikb is responsible for this · rated PG for Pretty Gay· +4 more

JoJo's Bizarre Adventure

Signs of Life Side B

by shrikesthorn

Koichi and Okuyasu visit Josuke in the hospital.Set in the immediate aftermath of the finale.

General 4.7k words 3 ch Complete 449 kudos

Hospitals · Hurt/Comfort · Emotional Hurt/Comfort

JoJo's Bizarre Adventure

Crazy Noisy Bizarre Ancestry

by SleepDeprivedFemale

Koichi thought Josuke’s family couldn’t get any more bizarre. Then he meets the vampire side of the family. (AU where Dio turned Jonathan to a vampire as a head, and in Part 3 Jonathan aided Jotaro and Dio didn’t get exploded but became a dick of an ally.)

General 2.5k words 1 ch Complete 288 kudos

Alternate Universe - Everyone Lives/Nobody Dies · Dio Brando Being Dio Brando · JoJo's Bizarre Adventure Part 4: Diamond is Unbreakable · Vampire Jonathan Joestar

Yakuza (Video Games)

don't be afraid (what your mind conceives)

by soulsinashes

Koichi Adachi discovers he's bi at 59 because of his big crush on his local bartender. And also him and Zhao are friends. Sober Zhao is probably a good wingman. Drunk Zhao is not. Nanba is a good friend. Ichiban finally remembers someone from his past.

Teen 2.2k words 1 ch Complete 256 kudos

Coming Out · Friendship · LOTS of parenthetical asides · No Spoilers· +4 more

JoJo's Bizarre Adventure

Live In This Moment

by cavicanem

Koichi retrieved the first aid kit and a thrift store medical textbook from the bookshelf and went to kneel next to Josuke. Okuyasu squatted and placed a stable hand on Josuke’s good shoulder as he wobbled. “You need to get his jacket off, Okuyasu,” Koichi said. “I need to see what’s wrong with his arm.”-Everyone knows Josuke's stand doesn't work on himself, and doctors stop being an option once the fights get more frequent and more difficult to lie about. Okuyasu and Koichi make pretty decent nurses though, and Josuke wouldn't rather anyone else.

Teen 2.1k words 1 ch Complete 248 kudos

Canon Compliant · Injury Recovery · okuyasu and koichi take care of josuke after a fight and then they hang out · Fluff· +6 more

One Piece (Anime & Manga)+1

Quirks Do you eat those

by nashandra

A self-insert lands in the MHA world, only to think she’s in the One Piece one. She proceeds to bring the latter’s insanity to the former by copious amounts of Devil Fruit jailbreaking. Watch as the Copy Woman turns logic upside down and makes you question everything you knew, or her name isn’t D (it isn’t, she just calls herself one).Semi-Regular weekly updates on Sundays

Teen 85k words 14 / ? ch In progress 178 kudos

Action/Adventure · Adventure · Humor · Violence· +21 more

JoJo's Bizarre Adventure

Wow the author hates herself 2: electric boogaloo

by orphan_account

Koichi and Rohan are wandering through the street when they feel two familiar stand auras. Josuke and Okuyasu..Rushing to see if they were in a fight with an enemy stand, they hurry to find them.What they find instead was unbelievable and Rohan fucking snaps.

Teen 1.6k words 1 ch Complete 169 kudos

Dinner dates · Literal crack post · Non-Explicit Sexual Content · Rohan at least tried protecting Koichi's innocence· +5 more

JoJo's Bizarre Adventure

Maybe Lobster Bisque was a Bad Idea

by slimysheep

Koichi begs and begs for Josuke and Rohan to have one dinner where they can be normal people who don’t hate each other's guts. Well, that goes to shit pretty quickly and surprisingly, it's neither Josuke’s nor Rohan’s fault

Teen 2.6k words 1 ch Complete 150 kudos

Angst · Fluff · Friendship · Higashikata Josuke (JoJo: Diamond is Unbreakable) Whump· +6 more

JoJo's Bizarre Adventure

Beat the Heat

by jojotier

Koichi sees Jotaro glitching through reality after an ice cream truck, assumes the worst, and is pleasantly surprised when things don't turn out nearly as scary as he would have thought looking at the man.

General 870 words 1 ch Complete 145 kudos

Summer · diu timeline · Humor · time stopping· +6 more

JoJo's Bizarre Adventure

Off Kilter

by ArtisticallyInsightful1

Koichi asks Josuke to be his boyfriend and shenanigans ensues. Rohan's super salty, Okuyasu is happy but hurt, and Jotaro is a protective papa wolf. (Tomoko has fallen off the face of the earth but not really, because of reasons)

Teen 6.5k words 3 ch Complete 141 kudos

Crack Treated Seriously · Fluff and Crack · Josuke is an idiot · Jotaro is smooth· +18 more