The Fourth Sorcerer
In this Jujutsu Kaisen story, Gojo's first-year class isn't three students — it's four, and you're the one history forgot to mention.
You may also like

Class 1A self insert
Anna
You just got into UA. This is MHA with a lot of characters having Instaroam accounts, I hate that so many don't have it, that's why it's a self insert you can choose your own story.

Infinite Threads of Fate: Satoru Gojo x You
Livi
Reina Shido and Satoru Gojo have never gotten along. She sees him as reckless and irresponsible; he sees her as rigid and infuriatingly closed-off. After a brutal mission and too much alcohol, one reckless night blurs years of hostility into something neither of them planned.

New Kid at Jujutsu High
e.feghali13
You just transferred into Tokyo Jujutsu High, and your new classmates happen to be the strongest sorcerers in the Jujutsu Kaisen universe.

Almost Human: JJK AU
roseofblood
You move into a shared house to split the rent, only to discover your new roommates are a warlock, a vampire, a reaper, a demon, a werewolf, an angel and a ghost, all struggling to blend into humanity. Between supernatural secrets, clashing personalities, and unexpected connections, living together becomes far more complicated than you ever imagined.

Supernatural: Blood on the Highway
AnnaWilliams
Join the Winchester brothers on the road, hunting demons, ghosts, and things that go bump in the night.

My Favorite Secret: JJK College AU
𝓴𝓲𝓻𝓫𝔂 (。•ᴗ•。)
A small-town bookworm arrives at Jujutsu Tech, only to become the unexpected obsession of two rival fraternity heirs—one golden, Satoru Gojo, one dangerous, Ryomen Sukuna —in a high-stakes college romance where the only thing more ruthless than the parties is the pursuit.

Backstage Pass to Disaster : JJK Celebrity AU
Visperia
One accidental collision with the world's biggest celebrity changes everything. You just wanted to live a quiet life, but now you are dragged into some celebrity drama - who will you pick and choose?

My Hero Academia: New Blood
.𝙣𝙮𝙭𝙬𝙧𝙡𝙙
A My Hero Academia story: you're the newest student at U.A. High, where everyone has a Quirk and only the strongest make it as a Pro Hero.

Straw Hats & Bad Habits | One Piece College AU
Blu.
One house party is all it takes to get tangled up in Monkey D. Luffy's notoriously chaotic college friend group. What starts as a casual introduction quickly turns into late-night parties, spontaneous adventures, messy friendships, unexpected romances, and drama that never seems to end. Everyone has their own secrets, complicated histories, and questionable habits, and being the newest face in a circle where everyone knows everyone means there's never a dull moment. Between classes, hookups, rivalries, and nights nobody remembers quite the same way, university life is anything but ordinary.

The Little Cub of the Cave
dorrying
You have always been the precious Cub raised inside the dark, warm caves of the valley, cherished and fiercely protected by seven primal hunters who watched you grow. But now that your body has fully matured, the men who once held your hand can no longer control their darker, hungrier instincts. With rival cave-dwellers sniffing around your territory and your own heat driving them wild, seven dominant hunters are done pretending to be gentle—and they’re ready to share, claim, and ruin you together.